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Annotation of OpenXM/src/asir-doc/parts/builtin/misc.texi, Revision 1.27

1.27    ! noro        1: @comment $OpenXM: OpenXM/src/asir-doc/parts/builtin/misc.texi,v 1.26 2018/09/06 05:42:43 takayama Exp $
1.3       noro        2: \BJP
1.1       noro        3: @node $B$=$NB>(B,,, $BAH$_9~$_H!?t(B
                      4: @section $B$=$NB>(B
1.3       noro        5: \E
                      6: \BEG
                      7: @node Miscellaneouses,,, Built-in Function
                      8: @section Miscellaneouses
                      9: \E
1.1       noro       10:
                     11: @menu
                     12: * ctrl::
                     13: * debug::
                     14: * error::
                     15: * help::
                     16: * time::
                     17: * cputime tstart tstop::
1.8       noro       18: * timer::
1.17      ohara      19: * currenttime::
                     20: * sleep::
1.1       noro       21: * heap::
                     22: * version::
                     23: * shell::
                     24: * map::
                     25: * flist::
                     26: * delete_history::
                     27: * get_rootdir::
1.2       noro       28: * getopt::
1.3       noro       29: * getenv::
1.1       noro       30: @end menu
                     31:
1.3       noro       32: \JP @node ctrl,,, $B$=$NB>(B
                     33: \EG @node ctrl,,, Miscellaneouses
1.1       noro       34: @subsection @code{ctrl}
                     35: @findex ctrl
                     36:
                     37: @table @t
                     38: @item ctrl("@var{switch}"[,@var{obj}])
1.3       noro       39: \JP :: $B4D6-@_Dj(B
                     40: \EG :: Sets the value of @var{switch}.
1.25      takayama   41: @item ctrl()
                     42: \JP :: $B4D6-$NI=<((B
                     43: \EG :: Show the values of @var{switch}'s.
                     44: @item ctrl(|desc=1)
1.26      takayama   45: \JP :: $B4D6-$*$h$S$=$NC;$$@bL@$NI=<((B
1.25      takayama   46: \EG :: Show the values of @var{swtich}'s and short descriptions
1.1       noro       47: @end table
                     48:
                     49: @table @var
                     50: @item return
1.3       noro       51: \JP $B@_Dj$5$l$F$$$kCM(B
                     52: \EG value of @var{switch}
1.1       noro       53: @item switch
1.3       noro       54: \JP $B%9%$%C%AL>(B
                     55: \EG switch name
1.1       noro       56: @item obj
1.3       noro       57: \JP $B%Q%i%a%?(B
                     58: \EG parameter
1.1       noro       59: @end table
                     60:
                     61: @itemize @bullet
1.3       noro       62: \BJP
1.1       noro       63: @item
                     64: @b{Asir} $B$N<B9T4D6-$N@_DjJQ99(B, $B;2>H$r9T$&(B.
                     65: @item @var{switch} $B$N$_$N>l9g(B, $B$=$N%9%$%C%A$N8=:_$N>uBV$rJV$9(B.
                     66: @item @var{obj} $B$,M?$($i$l$F$$$k$H$-(B, $B$=$NCM$r@_Dj$9$k(B.
                     67: @item
                     68: $B%9%$%C%A$OJ8;zNs$H$7$FF~NO$9$k(B. $B$9$J$o$A%@%V%k%/%)!<%H$G0O$`(B.
                     69: @item
1.27    ! noro       70: $B%9%$%C%A$O<!$NDL$j(B.
        !            71:
1.1       noro       72: @table @code
                     73: @item adj
                     74: $B%,!<%Y%C%8%3%l%/%7%g%s$NIQEY$NJQ99(B. 1 $B0J>e$NM-M}?t$,;XDj$G$-$k(B.
                     75: $B%G%U%)%k%HCM$O(B 3. 1 $B$K6a$$Dx(B, $B%,!<%Y%C%8%3%l%/%7%g%s$;$:$K%R!<%W$r(B
                     76: $BBg$-$/$H$k$h$&$K$J$k(B. $B@0?tCM$O%3%^%s%I%i%$%s$G;XDj$G$-$k(B.
                     77: @xref{$B%3%^%s%I%i%$%s%*%W%7%g%s(B}.
1.27    ! noro       78:
        !            79: @item allow_laurent
        !            80: 1 $B$N;~(B, $BC19`<0$N;X?t$KIi$N@0?t$r5v$9(B.
        !            81:
        !            82: @item bigfloat
        !            83: 1 $B$N;~(B, $BF~NO$5$l$?IbF0>.?t$O(B @b{bigfloat} $B$KJQ49$5$l(B, $BIbF0>.?t1i;;$O(B
        !            84: @b{PARI} (@ref{pari}) $B$K$h$j9T$o$l$k(B. $B%G%U%)%k%H$NM-8z7e?t$O(B 9 $B7e$G$"$k(B.
        !            85: $BM-8z7e?t$rA}$d$7$?$$;~$K$O(B @code{setprec()} $B$rMQ$$$k(B.
        !            86: 0 $B$N;~(B, $BF~NO$5$l$?IbF0>.?t$O(B, $BG\@:EYIbF0>.?t$KJQ49$5$l$k(B.
        !            87: @cindex PARI
        !            88:
        !            89: @item cputime
        !            90: 1 $B$N;~(B CPU time $B$*$h$S(B GC time $B$rI=<((B, 0 $B$N;~I=<($7$J$$(B. @code{cputime()}
        !            91: $B$r;2>H(B.
        !            92: @code{ctrl("cputime",@var{onoff})} $B$O(B @code{cputime(@var{onoff})} $B$HF1$8$G$"$k(B.
        !            93:
        !            94: @item debug_plot
        !            95: 1 $B$N;~(B, @code{ox_plot} $B$,%a%C%;!<%8%&%#%s%I%&$D$-$G5/F0$5$l$k(B.
        !            96:
        !            97: @item debug_up
        !            98: 1$B$N;~(B, 1$BJQ?t@lMQB?9`<04D4X?t(B(@code{umul()}$B$J$I(B)$B<B9T;~$K%a%C%;!<%8$rI=<($9$k(B.
        !            99:
        !           100: @item debug_window
        !           101: 1 $B$N;~(B debug_window $B$,%]%C%W%"%C%W$7$F3+$/(B.
        !           102: ($B%G%U%)%k%HCM$O(B 0.)
        !           103:
        !           104: @item diag_period
        !           105: @code{nd_gr()}, @code{nd_gr_trace()} $B$r@F<!%$%G%"%k$KBP$7$F<B9T$9$k:](B, $BESCf$G<B9T$5$l$kCf4V4pDl4V$NAj8_4JLs(B
        !           106: $B$NIQEY$r;XDj$9$k(B. $BCM$,(B @code{n} $B$J$i(B, $B?7$7$/4pDl$,(B @code{n}$B8D@8@.$5$l$k$?$S$KAj8_4JLs$,(B
        !           107: $B<B9T$5$l$k(B.
        !           108:
1.13      noro      109: @item double_output
1.27    ! noro      110: 1 $B$N;~(B, $BG\@:EYIbF0>.?t$O$D$M$K(B ddd.ddd $B$N7A$GI=<($5$l$k(B.
        !           111:
        !           112: @item echo
        !           113: 1 $B$N;~$OI8=`F~NO$r7+$jJV$7$F=PNO$7(B, 0 $B$N;~$OI8=`F~NO$r7+$jJV$5$J$$(B.
        !           114: @code{output} $B%3%^%s%I$rMQ$$$k:]$KM-8z$G$"$k(B.
        !           115:
        !           116: @item evalef
        !           117: 0 $B$N;~(B eval $B$N0z?t$,I>2A$5$l$?$H$-$=$l0J>eI>2A$G$-$J$/$J$C$?>l9g(B, $BITDj85%j%9%H$K(B
        !           118: $BEPO?$5$l$k(B. $B$?$H$($P(B eval(sin(0.1)) $B$H<B9T$9$k$H(B sin(0.1) $B$,$=$l0J>eI>2A$G$-$J$$$?$a(B
        !           119: $BITDj85%j%9%H$KEPO?$5$l$k(B.
        !           120: 1 $B$N;~$O(B, $BEPO?$5$l$J$$(B.
        !           121: $B=iEy4X?t$N?tCMI>2A$r7+$jJV$79T$&;~$O$3$N%*%W%7%g%s$r;HMQ$9$Y$-$G$"$k(B.
        !           122: ($B%G%U%)%k%HCM$O(B 0.)
        !           123: @xref{ord}
        !           124:
        !           125: @item error_in_timer
        !           126: 1 $B$N;~(B, $B%?%$%^!<=*N;;~$KDL>o$N%(%i!<=hM}$,<B9T$5$l$k(B.
        !           127:
        !           128: @item f4_nocheck
        !           129: 1$B$N;~(B, @code{nd_f4}, @code{nd_f4_trace} $B$K$*$1$k9TNs$N4JLs$r(BCRT$B$G9T$&:]$K(B, $B7k2L$N(B
        !           130: $B%A%'%C%/$r9T$o$J$$(B.
        !           131:
        !           132: @item fake_ox_reset
        !           133: @itemx no_ox_reset
        !           134: 1 $B$N$H$-(B, ox_reset $B$r<BAu$7$F$J$$%5!<%P!<$K$OBe$o$j$K(B ox_shutdown $B$rAw?.$9$k(B.
        !           135: ox_reset $B$N<BAu$NM-L5$O(B mathcap $B$N(B optional argument ($BBh;M0z?t(B)
        !           136: $B$KJ8;zNs(B no_ox_reset $B$,@_Dj$5$l$F$$$k$+$I$&$+$GH=CG$9$k(B.
        !           137: ox_pari $B$rMxMQ$9$k$H$-$O$3$N%U%i%0$r(B1$B$K$7$F$*$/$3$H$,K>$^$7$$(B.
        !           138: ($B%G%U%)%k%HCM$O(B 0.)
        !           139: @xref{$BJ,;67W;;(B}.
        !           140:
1.6       noro      141: @item fortran_output
1.27    ! noro      142: 1 $B$N;~(B, $BB?9`<0$NI=<($,(B FORTRAN $B%9%?%$%k$K$J$k(B. $B$9$J$o$AQQ$,(B
1.6       noro      143: @samp{^} $B$NBe$o$j$K(B @samp{**} $B$GI=$5$l$k(B.
                    144: ($B%G%U%)%k%HCM$O(B 0.)
1.27    ! noro      145:
        !           146: @item hex
        !           147: 1 $B$N;~(B, $B@0?t$O(B 0x $B$G;O$^$k(B 16 $B?J?t$H$7$FI=<($5$l$k(B. -1 $B$N$H$-(B, 16 $B?J?t$O(B,
        !           148: $B4V$K(B @samp{|} $B$r$O$5$s$G(B 8 $B7e$4$H$K6h@Z$C$FI=<($5$l$k(B.
        !           149:
        !           150: @item hideargs
        !           151: 1$B$N;~(B, $B4X?t8F$S=P$7$rI=<($9$k:]$K0z?t$,I=<($5$l$J$$(B.
        !           152:
        !           153: @item loadpath
        !           154: @code{ASIRLOADPATH} $B$r>e=q$-$9$k(B.
        !           155:
        !           156: @item message
        !           157: 1 $B$N;~(B, @code{ox_asir}, @code{ox_plot} $B<B9T;~$K3+;O%a%C%;!<%8$rI=<($9$k(B.
        !           158:
        !           159: @item new_hensel
        !           160: 1 $B$N;~(B, $BM-M}?tBN>e$N(B1$BJQ?tB?9`<0$N0x?tJ,2r$K$*$$$F(B, $B4X?t(B @code{hensel2()} $B$,MQ$$$i$l$k(B.
        !           161:
        !           162: @item nez
        !           163: EZGCD $B$N%"%k%4%j%:%`$N@ZBX$((B. $B%G%U%)%k%H$G(B 1 $B$G$"$j(B, $B$H$/$K@ZBX$($kI,MW(B
        !           164: $B$O$J$$(B.
        !           165:
        !           166: @item no_debug_on_error
        !           167: 1 $B$N;~(B, $B%(%i!<;~$K%G%P%C%0%b!<%I$KF~$i$J$$(B.
        !           168:
        !           169: @item no_prompt
        !           170: 1$B$N;~(B, $B%W%m%s%W%H$,I=<($5$l$J$$(B.
        !           171:
        !           172: @item outputstyle
        !           173: 1 $B$N;~(B, $B9TNs(B, $B%Y%/%H%k$,(B @code{mat(...)}, @code{vect(...)} $B$N7A$GI=<($5$l$k(B.
        !           174:
1.1       noro      175: @item ox_batch
                    176: 1 $B$N$H$-(B, $BAw?.%P%C%U%!$,$$$C$Q$$$K$J$C$?;~$N$_<+F0E*$K(B flush.
                    177: 0 $B$N$H$-(B, $B%G!<%?(B, $B%3%^%s%IAw?.Kh$K(B flush. ($B%G%U%)%k%HCM$O(B 0.)
1.10      noro      178: @xref{$BJ,;67W;;(B}.
1.27    ! noro      179:
1.1       noro      180: @item ox_check
                    181: 1 $B$N$H$-(B, $BAw?.%G!<%?$rAj<j%W%m%;%9$,<u$1<h$l$k$+$I$&$+%A%'%C%/$9$k(B.
                    182: 0 $B$N$H$-$7$J$$(B. ($B%G%U%)%k%HCM$O(B 1.)
1.10      noro      183: @xref{$BJ,;67W;;(B}.
1.27    ! noro      184:
1.5       noro      185: @item ox_exchange_mathcap
                    186: 1 $B$N$H$-(B, OX server $B$H$N@\B33+;O;~$K(B, $B<+F0E*$K(B mathcap $B$N8r49$r9T$&(B.
                    187: ($B%G%U%)%k%HCM$O(B 1.)
1.10      noro      188: @xref{$BJ,;67W;;(B}.
1.27    ! noro      189:
1.23      takayama  190: @item plot_by_bigfloat
                    191: N $B$N$H$-(B, 10$B?J?t$G$N@:EY$r(B N $B7e$H$7$F(B, bigfloat $B$rMQ$$$F(B plot $B$r9T$&(B.
                    192: ($B%G%U%)%k%H$G$O(B double $B$rMQ$$$F(B plot $B$r9T$&(B.)
1.27    ! noro      193:
        !           194: @item print_quote
        !           195: quote $B%G!<%?$NI=<(J}K!$r;XDj$9$k(B.
        !           196: 0 $B$N;~(B, quote $B%G!<%?$OC1$K(B @code{<...quoted...>}$B$HI=<($5$l$k(B. 1 $B$N;~(B, $B%j%9%H7A<0$GI=<($5$l$k(B.
        !           197: 2 $B$N;~(B, $B<+A3$J?t<0$N7A$GI=<($5$l$k(B.
        !           198:
        !           199: @item prompt
        !           200: 0 $B$N$H$-%W%m%s%W%H$rI=<($7$J$$(B. 1 $B$N$H$-I8=`%W%m%s%W%H$rI=<((B.
        !           201: C $B%9%?%$%k$N%U%)%^%C%HJ8;zNs$r$b$A$$$k$H%f!<%6Dj5A$N%W%m%s%W%H(B.
        !           202: $BNc(B(asirgui $B$G$OIT2D(B):
        !           203: @code{ ctrl("prompt","\033[32m[%d]:= \033[0m")}
        !           204:
        !           205: @item quiet_mode
        !           206: 1 $B$N$H$-(B, $B5/F0;~$KCx:n8"I=<($r9T$o$J$$(B.
        !           207: @xref{$B%3%^%s%I%i%$%s%*%W%7%g%s(B}.
        !           208:
        !           209: @item real_binary
        !           210: 1$B$N;~(B, $BG\@:EYIbF0>.?t$r(B2$B?JI=<($9$k(B.
        !           211:
        !           212: @item real_digit
        !           213: $BG\@:EYIbF0>.?t$NI=<($N7e?t$r;XDj$9$k(B.
        !           214:
        !           215: @item show_crossref
        !           216: 1 $B$N;~(B, $B4X?tDj5A$rFI$_9~$`:]$K(B, $B%/%m%9%j%U%!%l%s%9$,I=<($5$l$k(B.
        !           217:
        !           218: @item show_orderspec
        !           219: 1 $B$N;~(B, dp $B7O4X?t$K$h$k%0%l%V%J!<4pDl7W;;4X?t$KBP$9$kJ#9gE*$J9`=g=x$N;XDj;~$K(B
        !           220: $B$=$N>\:Y$rI=<($9$k(B.
        !           221:
        !           222: @item StrassenSize
        !           223: Strassen-Winograd $B$K$h$k9TNs$N9bB.>h;;%"%k%4%j%:%`<B9T$K$*$1$k%Q%i%a%?$NCM$r@_Dj$9$k(B.
        !           224:
        !           225: @item terse
        !           226: 1 $B$N;~(B, $B%f!<%6Dj5A(B callback $B<B9T;~$K%a%C%;!<%8$rI=<($7$J$$(B.
        !           227:
        !           228: @item weight_check
        !           229: 1 $B$N;~(B, nd $B7O4X?t$K$h$k%0%l%V%J!<4pDl$K$*$$$F(B, $B;XDj$5$l$?(B weight $B$rMQ$$$?(Bweight $B$N(Boverflow $B%A%'%C%/$r9T$&(B.
        !           230: @item verbose
        !           231: 1 $B$N;~(B, $BH!?t$N:FDj5A;~$K%a%C%;!<%8$rI=<($9$k(B.
        !           232:
1.1       noro      233: @end table
1.3       noro      234: \E
                    235: \BEG
                    236: @item
                    237: This function is used to set or to get the values of switches.
                    238: The switches are used to control an execution of @b{Asir}.
                    239: @item If @var{obj} is not specified, the value of @var{switch} is returned.
                    240: @item If @var{obj} is specified, the value of @var{switch} is set to
                    241: @var{obj}.
                    242: @item
                    243: Switches are specified by strings, namely, enclosed by two
                    244: double quotes.
                    245: @item
                    246: Here are of switches of @b{Asir}.
                    247: @table @code
                    248: @item cputime
                    249: If `on', CPU time and GC time is displayed at every top level evaluation
                    250: of @b{Asir} command; if `off', not displayed.
                    251: @xref{cputime tstart tstop}.
                    252: (The switch is also set by command @code{cputime(1)}, and
                    253: reset by @code{cputime(0)}.)
                    254: @item nez
                    255: Selection for EZGCD algorithm.  It is set to 1 by default.  Ordinary
                    256: users need not change this setting.
                    257: @item echo
                    258: If `on', inputs from the standard input will be echoed onto the
                    259: standard output.  When executing to load a file, the contents of the
                    260: file will be written onto the standard output.
                    261: If `off', the inputs will not be echoed.
                    262: This command will be useful when used with command @code{output}.
                    263: @item bigfloat
                    264: If `on', floating operations will be done by @b{PARI} system with arbitrary
                    265: precision floating point operations.
                    266: Default precision is set to 9 digits.  To change the precision, use
1.21      noro      267: command @code{setbprec setprec}.
1.3       noro      268: If `off', floating operations will be done by @b{Asir}'s own floating
                    269: operation routines with a fixed precision operations of
                    270: standard floating double.
                    271: @cindex PARI
                    272: @item adj
                    273: Sets the frequency of garbage collection. A rational number greater
                    274: than or equal to 1 can be specified. The default value is 3.
                    275: If a value closer to 1 is specified, larger heap is allocated
                    276: and as a result, the frequency of garbage collection decreases.
                    277: @xref{Command line options}.
                    278: @item verbose
                    279: If `on' a warning messages is displayed when a function is redefined.
1.14      ohara     280: @item quiet_mode
                    281: If 1 is set, the copyright notice has been displayed at boot time.
1.15      takayama  282: @item prompt
                    283: If the value is 0, then prompt is not output.
                    284: If the value is 1, then the standard prompt is output.
                    285: Asir prompt can be customized by giving a C-style format string.
                    286: Example (for unix asir);
1.16      ohara     287: @code{ ctrl("prompt","\033[32m[%d]:= \033[0m")}
                    288:
1.3       noro      289: @item hex
                    290: If 1 is set, integers are displayed as hexadecimal numbers with prefix
1.13      noro      291: @code{0x}. if -1 is set, hexadecimal numbers are displayed with
1.3       noro      292: @samp{|} inserted at every 8 hexadecimal digits.
1.13      noro      293: @item real_digit
                    294: Sets the number of digits used to print a floating double.
                    295: @item double_output
                    296: If set to 1, any floating double is printed in the style ddd.ddd.
1.6       noro      297: @item fortran_output
                    298: If `on' polynomials are displayed in FORTRAN style. That is, a power
                    299: is represented by @samp{**} instead of @samp{^}.
                    300: The default value is 'off.
1.3       noro      301: @item ox_batch
                    302: If 'on', the OpenXM send buffer is flushed only when the buffer is full.
                    303: If 'off', the buffer is always flushed at each sending of data or command.
                    304: The default value is 'off'.
1.10      noro      305: @xref{Distributed computation}.
1.3       noro      306: @item ox_check
                    307: If 'on' the check by mathcap is done before sending data.
1.5       noro      308: The default value is 'on'.
1.10      noro      309: @xref{Distributed computation}.
1.5       noro      310: @item ox_exchange_mathcap
                    311: If 'on' Asir forces the exchange of mathcaps at the communication startup.
1.3       noro      312: The default value is 'on'.
1.10      noro      313: @xref{Distributed computation}.
1.20      takayama  314: @item debug_window
                    315: When 1, a debug window pops up.
                    316: (The default value is 0.)
                    317: @item fake_ox_reset
                    318: When 1, the function ox_reset sends ox_shutdown insread of ox_reset
                    319: to servers which do not implement ox_reset protocol.
                    320: It is checked by the optional argument (the fourth argument)
                    321: containing the string "no_ox_reset"
                    322: of mathcap if ox_reset is implemented or not.
                    323: When you use ox_pari, it is recommended to set this flag 1.
                    324: (The default value is 0.)
                    325: @xref{Distributed computation}.
1.23      takayama  326: @item plot_by_bigfloat
                    327: If its value N is not equal to zero, then plotting is done by bigfloat.
                    328: (The double numbers are used as the default.)
1.24      takayama  329: @item evalef
                    330: When it is set to 0, the arguments of eval are registered to the list of
                    331: indeterminants when arguments are no longer to be simplified.
                    332: For example, when this flag is 0, sin(0.1) is registered to the list of
                    333: indeterminants when eval(sin(0.1)) is evaluated.
                    334: When it is set to 1, arguments are numerically evaluated.
                    335: It is recommended to turn on this option, when you repeat to evaluate elementary functions numerically.
                    336: (The default value is 0.)
                    337: @xref{ord}
1.3       noro      338: @end table
                    339: \E
1.1       noro      340: @end itemize
                    341:
1.25      takayama  342: @example
                    343: [1917] ctrl();
                    344: [[oxpari_start,0],[oxpari_id,-1],... snip ....,[plot_by_bigfloat,0],[debug_plot,0]]
                    345: [1918] map(print,ctrl(|desc=1));
                    346: [oxpari_start,0,oxpari starting function.]
                    347: [oxpari_id,-1,Id of ox_pari.]
                    348: ... snip ...
                    349: [plot_by_bigfloat,0,If set to 1, computation is done by using MPFR bigfloat functions in ox_plot.]
                    350: [debug_plot,0,If set to 1, ox_plot is executed with the message window.]
                    351: @end example
                    352:
1.1       noro      353: @table @t
1.3       noro      354: \JP @item $B;2>H(B
                    355: \EG @item References
1.1       noro      356: @fref{cputime tstart tstop}, @fref{output},
1.21      noro      357: @fref{pari}, @fref{setbprec setprec}, @fref{eval deval}.
1.1       noro      358: @end table
                    359:
1.23      takayama  360: @noindent
                    361: ChangeLog
                    362: @itemize @bullet
1.25      takayama  363: @item @xref{ChangeLog}
1.23      takayama  364: \BEG
                    365: @item plot_by_bigfloat switch is added on 2017.09.04. The following files are changed.
                    366: \E
                    367: \BJP
1.27    ! noro      368: @item $B7g$1$F$$$?%9%$%C%A$N@bL@$rDI2C$7$?(B (2018.3.29).
1.23      takayama  369: @item plot_by_bigfloat $B%9%$%C%A$O(B 2017.09.04 $B$K2C$($i$l$?(B. $BJQ99$r<u$1$?%U%!%$%k$O2<5-$N$H$*$j(B.
                    370: \E
                    371: @item 1.54 ctrl.c,
                    372:   1.14 bf.c,
                    373:   1.75 tcpf.c,
                    374:   1.13 calc.c,
                    375:   1.36 if.c,
                    376:   1.25 ifplot.h,
                    377:   1.33 plotf.c
                    378: @end itemize
                    379:
1.3       noro      380: \JP @node debug,,, $B$=$NB>(B
                    381: \EG @node debug,,, Miscellaneouses
1.1       noro      382: @subsection @code{debug}
                    383: @findex debug
                    384:
                    385: @table @t
                    386: @item debug
1.3       noro      387: \JP :: $B%G%P%C%0%b!<%I$KF~$k(B.
                    388: \EG :: Forces to enter into debugging mode.
1.1       noro      389: @end table
                    390:
                    391: @itemize @bullet
1.3       noro      392: \BJP
1.1       noro      393: @item
                    394: @code{debug} $B$OL50z?t$NH!?t$G$"$k$,(B, @samp{()} $B$J$7$G8F$S=P$;$k(B.
                    395: @item
                    396: $B%G%P%C%0%b!<%I$KF~$k$H%W%m%s%W%H$,(B @code{(debug)} $B$H$J$j(B, $B%3%^%s%I(B
                    397: $B<u$1IU$1>uBV$H$J$k(B. @code{quit} $B$rF~NO$9$k$H%G%P%C%,$+$iH4$1$k(B.
                    398: @item
                    399: $B%G%P%C%0%b!<%I$K$D$$$F$N>\:Y$O(B @xref{$B%G%P%C%,(B}.
1.3       noro      400: \E
                    401: \BEG
                    402: Function @code{debug} is a function with no argument.
                    403: It can be called without @samp{()}.
                    404: @item
                    405: In the debug-mode, you are prompted by @code{(debug)} and
                    406: the debugger is ready for commands.
                    407: Typing in @code{quit} (Note! without a semicolon.) brings you
                    408: to exit the debug-mode.
                    409: @item
1.10      noro      410: See @ref{Debugger} for details.
1.3       noro      411: \E
1.1       noro      412: @end itemize
                    413:
                    414: @example
                    415: [1] debug;
                    416: (debug) quit
                    417: 0
                    418: [2]
                    419: @end example
                    420:
1.3       noro      421: \JP @node error,,, $B$=$NB>(B
                    422: \EG @node error,,, Miscellaneouses
1.1       noro      423: @subsection @code{error}
                    424: @findex error
                    425:
                    426: @table @t
                    427: @item error(@var{message})
1.3       noro      428: \JP :: $B%W%m%0%i%`Cf$G6/@)E*$K%(%i!<$rH/@8$5$;$k(B.
                    429: \EG :: Forces @b{Asir} to cause an error and enter debugging mode.
1.1       noro      430: @end table
                    431:
                    432: @table @var
                    433: @item message
1.3       noro      434: \JP $BJ8;zNs(B
                    435: \EG string
1.1       noro      436: @end table
                    437:
                    438: @itemize @bullet
1.3       noro      439: \BJP
1.1       noro      440: @item
                    441: $B0lHL$K(B, $B0z?t$N4V0c$$$J$I(B, $BB39TIT2DG=$J%(%i!<$,AH$_9~$_H!?t$K$*$$$F(B
                    442: $BH/@8$7$?;~(B, $B%H%C%W%l%Y%k$KLa$kA0$K(B, $B2DG=$J$i$P$=$N%(%i!<$N;~E@$G(B
                    443: $B%G%P%C%0%b!<%I$KF~$k(B. @code{error()} $B$O(B, $B%f!<%6H!?t$NFbIt$G$3$N(B
                    444: $BF0:n$HF1MM$NF0:n$r9T$o$;$k$?$a$NH!?t$G$"$k(B.
                    445: @item
                    446: $B0z?t$O(B, @code{error()} $B$,8F$S=P$5$l$k:]$KI=<($5$l$k%a%C%;!<%8$G(B,
                    447: $BJ8;zNs$G$"$k(B.
                    448: @item
                    449: $B%f!<%6H!?t$K$*$$$F(B, $BJQ?t$r%A%'%C%/$7$F(B, $B$"$jF@$J$$CM$N>l9g$K(B @code{error()}
                    450: $B$r8F$S=P$9$h$&$K$7$F$*$1$P(B, $B$=$N;~E@$G<+F0E*$K%G%P%C%0%b!<%I$KF~$l$k(B.
1.3       noro      451: \E
                    452: \BEG
                    453: @item
                    454: When @b{Asir} encounters a serious error such that it finds difficult
                    455: to continue execution,
                    456: it, in general, tries to enter debugging mode before it returns to
                    457: top level.
                    458: The command @code{error()} forces a similar behavior in a user program.
                    459: @item
                    460: The argument is a string which will be displayed when @code{error()}
                    461: will be executed.
                    462: @item
                    463: You can enter the debug-mode when your program encounters an illegal
                    464: value for a program variable, if you have written the program
                    465: so as to call @code{error()} upon finding such an error in your program
                    466: text.
                    467: \E
1.1       noro      468: @end itemize
                    469:
                    470: @example
                    471: % cat mod3
                    472: def mod3(A) @{
                    473:         if ( type(A) >= 2 )
                    474:                 error("invalid argument");
                    475:         else
                    476:                 return A % 3;
                    477: @}
                    478: end$
                    479: % asir
                    480: [0] load("mod3");
                    481: 1
                    482: [3] mod3(5);
                    483: 2
                    484: [4] mod3(x);
                    485: invalid argument
                    486: stopped in mod3 at line 3 in file "./mod3"
                    487: 3                       error("invalid argument");
                    488: (debug) print A
                    489: A = x
                    490: (debug) quit
                    491: return to toplevel
                    492: [4]
                    493: @end example
                    494:
                    495: @table @t
1.3       noro      496: \JP @item $B;2>H(B
                    497: \EG @item References
1.1       noro      498: @fref{debug}.
                    499: @end table
                    500:
1.3       noro      501: \JP @node help,,, $B$=$NB>(B
                    502: \EG @node help,,, Miscellaneouses
1.1       noro      503: @subsection @code{help}
                    504: @findex help
                    505:
                    506: @table @t
                    507: @item help(["@var{function}"])
1.3       noro      508: \JP :: $BH!?t$N@bL@$rI=<($9$k(B.
                    509: \EG :: Displays the description of function @var{function}.
1.1       noro      510: @end table
                    511:
                    512: @table @var
                    513: @item return
                    514: 0
                    515: @item function
1.3       noro      516: \JP $BH!?tL>(B
                    517: \EG function name
1.1       noro      518: @end table
                    519:
                    520: @itemize @bullet
1.3       noro      521: \BJP
1.1       noro      522: @item
                    523: $BL50z?t$N;~(B, $B:G>.8B$N@bL@$,I=<($5$l$k(B. $BH!?tL>$,0z?t$H$7$FM?$($i$l$?(B
                    524: $B$H$-(B, $BI8=`%i%$%V%i%j%G%#%l%/%H%j$K$"$k(B @samp{help} $B$H$$$&%G%#%l%/%H%j(B
                    525: $B$KF1L>$N%U%!%$%k$,$"$l$P(B, $B4D6-JQ?t(B @code{PAGER} $B$K@_Dj$5$l$F$$$k%3%^%s%I(B,
                    526: $B$"$k$$$O(B @samp{more} $B$r8F$S=P$7$F$=$N%U%!%$%k$rI=<($9$k(B.
                    527: @item
1.4       noro      528: $B4D6-JQ?t(B @code{LANG} $B$,@_Dj$5$l$F$$$k>l9g(B, $B$=$NCM$,(B @code{"japan"} $B$^$?$O(B
1.19      ohara     529: @code{"ja_JP"} $B$G;O$^$k$J$i(B, @samp{help} $B$NBe$o$j$K(B @samp{help-ja}
                    530: $B$K$"$k%U%!%$%k$,I=<($5$l$k(B. $B$=$&$G$J$$>l9g(B, @samp{help-en}
1.4       noro      531: $B$K$"$k%U%!%$%k$,I=<($5$l$k(B.
                    532: @item
1.1       noro      533: Windows $BHG$G$O(B, $B%3%^%s%I%i%$%s$+$i$N%X%k%W8F$S=P$7$OL$%5%]!<%H$@$,(B,
                    534: $B%a%K%e!<$+$i(B HTML $B7A<0$N$b$N$r8F$S=P$7MQ$$$k$3$H$,$G$-$k(B.
1.3       noro      535: \E
                    536: \BEG
                    537: @item
                    538: If invoked without argument, it displays rough usage of @b{Asir}.
                    539: @item
                    540: If a function name is given and if there exists a file with the
                    541: same name in the directory @samp{help} under standard library directory,
                    542: the file is displayed by a command set to the environmental variable
                    543: @code{PAGER} or else command @samp{more}.
1.4       noro      544: @item
                    545: If the @code{LANG} environment variable is set and its value
                    546: begins with @code{"japan"} or @code{"ja_JP"}, then the file in
1.19      ohara     547: @samp{help-ja} is displayed. If its value does not begin with
                    548: @code{"japan"} or @code{"ja_JP"}, then the file in @samp{help-en}
1.4       noro      549: is displayed.
1.3       noro      550: @item
                    551: On Windows HTML-style help is available from the menu.
                    552: \E
1.1       noro      553: @end itemize
                    554:
1.3       noro      555: \JP @node time,,, $B$=$NB>(B
                    556: \EG @node time,,, Miscellaneouses
1.1       noro      557: @subsection @code{time}
                    558: @findex time
                    559:
                    560: @table @t
                    561: @item time()
1.3       noro      562: \JP :: $B%;%C%7%g%s3+;O$+$i8=:_$^$G$N(B CPU $B;~4V$*$h$S(B GC $B;~4V$rI=<($9$k(B
                    563: \BEG
                    564: :: Returns a four element list consisting of
                    565: total CPU time, GC time, the elapsed time
                    566: and also total memory quantities requested
                    567: from the start of current @b{Asir} session.
                    568: \E
1.1       noro      569: @end table
                    570:
                    571: @table @var
                    572: @item return
1.3       noro      573: \JP $B%j%9%H(B
                    574: \EG list
1.1       noro      575: @end table
                    576:
                    577: @itemize @bullet
1.3       noro      578: \BJP
1.1       noro      579: @item
                    580: CPU $B;~4V$*$h$S(B GC $B;~4V$NI=<($K4X$9$k%3%^%s%I$G$"$k(B.
                    581: @item
                    582: GC $B;~4V$H$O(B, $B%,!<%Y%8%3%l%/%?$K$h$j>CHq$5$l$?$H8+$J$5$l$k;~4V(B,
                    583: CPU $B;~4V$O(B, $BA4BN$N(B CPU $B;~4V$+$i(B GC $B;~4V$r0z$$$?;D$j$G(B, $BC10L$OIC$G$"$k(B.
                    584: @item
                    585: @code{time()} $B$O0z?t$J$7$G(B, $B%;%C%7%g%s3+;O$+$i8=:_$^$G$N(B CPU $B;~4V(B,
                    586: GC $B;~4V(B, $B8=:_$^$G$KMW5a$5$l$?%a%b%j$N$N$YMFNL(B, $B$*$h$S%;%C%7%g%s3+;O$+$i(B
                    587: $B8=:_$^$G$N7P2a;~4V$NI=<($r$9$k(B.
                    588: $B$9$J$o$A(B, @code{[CPU $B;~4V(B ($BIC(B), GC $B;~4V(B ($BIC(B), $B%a%b%jNL(B ($B%o!<%I(B), $B7P2a;~4V(B ($BIC(B)]}
                    589: $B$J$k%j%9%H$rJV$9(B. 1 $B%o!<%I$ODL>o(B 4 $B%P%$%H$G$"$k(B.
                    590: @item
                    591: $B7W;;$N<B9T3+;O;~(B, $B=*N;;~$N(B @code{time()} $B$+$i(B, $B$=$N7W;;$KBP$9$k(B
                    592: CPU $B;~4V(B, GC $B;~4V$,$o$+$k(B.
                    593: @item
                    594: $B%a%b%jNL$OB?G\D9?t$G$O$J$$$?$a(B, $B$"$kCM$r1[$($k$HL50UL#$JCM$H$J$k$?$a(B
                    595: $B$"$/$^$G$bL\0B$H$7$FMQ$$$k$Y$-$G$"$k(B.
                    596: @item
                    597: @code{ctrl()} $B$d(B @code{cputime()} $B$K$h$j(B @code{cputime} $B%9%$%C%A$,(B
                    598: on $B$K$J$C$F$$$k>l9g$K$O(B, $B%H%C%W%l%Y%k$NJ8$r0l$D$NC10L$H$7$F(B,
                    599: $B$=$N<B9T;~4V$,I=<($5$l$k(B. $B$7$+$7(B, $B%W%m%0%i%`$NFbIt$J$I$G(B, $BFCDj$N(B
                    600: $B7W;;$KBP$9$k7W;;;~4V$rCN$j$?$$;~$K$O(B, @code{time()} $B$J$I$r;H$&(B
                    601: $BI,MW$,$"$k(B.
                    602: @item
                    603: @code{getrusage()} $B$,;H$($k(B UNIX $B>e$G$O(B @code{time()} $B$O?.Mj@-$N$"$kCM(B
                    604: $B$rJV$9$,(B, Windows 95, 98 $B>e$G$O;~9o$rMQ$$$k$[$+J}K!$,$J$$$?$a7P2a;~4V$=$N$b$N(B
                    605: $B$,I=<($5$l$k(B. $B$h$C$F(B, $BBT$A>uBV$,$"$k$H(B, $B$=$l$b7P2a;~4V$K2C;;$5$l$k(B.
1.3       noro      606: \E
                    607: \BEG
                    608: @item
                    609: These are commands regarding CPU time and GC time.
                    610: @item
                    611: The GC time is the time regarded to spent by the garbage collector,
                    612: and the CPU time is the time defined by subtracting the GC time from
                    613: the total time consumed by command @b{Asir}.  Their unit is `second.'
                    614: @item
                    615: Command @code{time()} returns total CPU time and GC time measured
                    616: from the start of current @b{Asir} session. It also returns the elapsed
                    617: time. Time unit is `second.'
                    618: Moreover, it returns total memory quantities in words
                    619: (usually 4 bytes) which are requested
                    620: to the memory manager from the beginning of the current session.
                    621: The return value is a list and the format is @code{[CPU time, GC time,
                    622: Memory, Elapsed time]}.
                    623: @item
                    624: You can find the CPU time and GC time for some computation by taking
                    625: the difference of the figure reported by @code{time()} at the beginning
                    626: and the ending of the computation.
                    627: @item
                    628: Since arbitrary precision integers are NOT used for counting
                    629: the total amount of memory request, the number will eventually happen
                    630: to become meaningless due to integer overflow.
                    631: @item
                    632: When @code{cputime} switch is active by @code{ctrl()} or by
                    633: @code{cputime()}, the execution time will be displayed after every
                    634: evaluation of top level statement.
                    635: In a program, however, in order to know the execution time for a
                    636: sequence of computations, you have to use @code{time()} command, for
                    637: an example.
                    638: @item
                    639: On UNIX, if @code{getrusage()} is available, @code{time()} reports
                    640: reliable figures. On Windows NT it also gives reliable CPU time.
                    641: However, on Windows 95/98, the reported time is nothing but
                    642: the elapsed time of the real world.
                    643: Therefore, the time elapsed in the debug-mode and the time of waiting
                    644: for a reply to interruption prompting are added to the elapsed time.
                    645: \E
1.1       noro      646: @end itemize
                    647:
                    648: @example
                    649: [72] T0=time();
                    650: [2.390885,0.484358,46560,9.157768]
                    651: [73] G=hgr(katsura(4),[u4,u3,u2,u1,u0],2)$
                    652: [74] T1=time();
                    653: [8.968048,7.705907,1514833,63.359717]
                    654: [75] ["CPU",T1[0]-T0[0],"GC",T1[1]-T0[1]];
                    655: [CPU,6.577163,GC,7.221549]
                    656: @end example
                    657:
                    658: @table @t
1.3       noro      659: \JP @item $B;2>H(B
                    660: \EG @item References
1.17      ohara     661: @fref{cputime tstart tstop}, @fref{currenttime}.
1.1       noro      662: @end table
                    663:
1.3       noro      664: \JP @node cputime tstart tstop,,, $B$=$NB>(B
                    665: \EG @node cputime tstart tstop,,, Miscellaneouses
1.1       noro      666: @subsection @code{cputime}, @code{tstart}, @code{tstop}
                    667: @findex cputime
                    668: @findex tstart
                    669: @findex tstop
                    670:
                    671: @table @t
                    672: @item cputime(@var{onoff})
1.3       noro      673: \JP :: $B0z?t$,(B 0 $B$J$i$P(B @code{cputime} $B$NI=<($r;_$a$k(B. $B$=$l0J30$J$i$PI=<($r9T$&(B.
                    674: \BEG
                    675: :: Stop displaying @code{cputime} if its argument is 0, otherwise
                    676: start displaying @code{cputime} after every top level evaluation of
                    677: Asir command.
                    678: \E
1.1       noro      679: @item tstart()
1.3       noro      680: \JP :: CPU time $B7WB,3+;O(B.
                    681: \EG :: Resets and starts timer for CPU time and GC time.
1.1       noro      682: @item tstop()
1.3       noro      683: \JP :: CPU time $B7WB,=*N;$*$h$SI=<((B.
                    684: \BEG
                    685: :: Stops timer and then displays CPU time GC time elapsed from the
                    686: last time when timer was started.
                    687: \E
1.1       noro      688: @end table
                    689:
                    690: @table @var
                    691: @item return
                    692: 0
                    693: @item onoff
1.3       noro      694: \JP $B%U%i%0(B ($BG$0U(B)
                    695: \EG flag (arbitrary)
1.1       noro      696: @end table
                    697:
                    698: @itemize @bullet
1.3       noro      699: \BJP
1.1       noro      700: @item
                    701: @code{cputime()} $B$O(B, $B0z?t$,(B 0 $B$J$i$P(B CPU time $B$NI=<($r;_$a$k(B. $B$=$l0J30$J$i$PI=<($r9T$&(B.
                    702: @item
                    703: @code{tsart} $B$O0z?t$J$7(B, @samp{()} $B$J$7$G(B, CPU time $B7WB,$r3+;O$9$k(B.
                    704: @item
                    705: @code{tstop} $B$O0z?t$J$7(B, @samp{()} $B$J$7$G(B, CPU time $B7WB,$r=*N;(B,
                    706: $B$*$h$SI=<($9$k(B.
                    707: @item
                    708: @code{cputime(@var{onoff})} $B$O(B @code{ctrl("cputime",@var{onoff})} $B$HF1$8$G$"$k(B.
                    709: @item
                    710: @code{tstart}, @code{tstop} $B$O(B, $BF~$l;R$K$7$F;H$o$l$k$3$H$OA[Dj$7$F$$$J$$(B
                    711: $B$?$a(B, $B$=$N$h$&$J2DG=@-$,$"$k>l9g$K$O(B, @code{time()} $B$K$h$k7WB,$r9T$&(B
                    712: $BI,MW$,$"$k(B.
                    713: @item
                    714: @code{cputime()} $B$K$h$k(B on, off $B$O(B, $BC1$KI=<($N(B on, off $B$G$"$j(B, $B%H%C%W%l%Y%k(B
                    715: $B$N0l$D$NJ8$KBP$9$k7WB,$O>o$K9T$o$l$F$$$k(B. $B$h$C$F(B, $B7W;;$r;O$a$F$+$i$G$b(B,
                    716: $B7W;;=*N;A0$K%G%P%C%,$KF~$C$F(B @code{cputime(1)} $B$r<B9T$5$;$l$P7W;;;~4V$O(B
                    717: $BI=<($5$l$k(B.
1.3       noro      718: \E
                    719: \BEG
                    720: @item
                    721: Command @code{cputime()} with NON-ZERO argument enables @b{Asir} to display
                    722: CPU time and GC time after every evaluation of top level @b{Asir} command.
                    723: The command with argument 0 disables displaying them.
                    724: @item
                    725: Command @code{tstart()} starts measuring CPU time and GC time without
                    726: arguments.  The parentheses @samp{()} may be omitted.
                    727: @item
                    728: Command @code{tstop()} stops measuring CPU time and GC time and displays
                    729: them without arguments. The parentheses @samp{()} may be omitted.
                    730: @item
                    731: Command @code{cputime(@var{onoff})} has same meaning as
                    732: @code{ctrl("cputime",@var{onoff})}.
                    733: @item
                    734: Nested use of @code{tstart()} and @code{tstop()} is not expected.
                    735: If such an effect is desired, use @code{time()}.
                    736: @item
                    737: On and off states by @code{cputime()} have effects only to displaying
                    738: mode.  Time for evaluation of every top level statement is always
                    739: measured.
                    740: Therefore, even after a computation has already started,
                    741: you can let @b{Asir} display the timings, whenever you enter
                    742: the debug-mode and execute @code{cputime(1)}.
                    743: \E
1.1       noro      744: @end itemize
                    745:
                    746: @example
                    747: [49] tstart$
                    748: [50] fctr(x^10-y^10);
                    749: [[1,1],[x+y,1],[x^4-y*x^3+y^2*x^2-y^3*x+y^4,1],[x-y,1],
                    750: [x^4+y*x^3+y^2*x^2+y^3*x+y^4,1]]
                    751: [51] tstop$
                    752: 80msec + gc : 40msec
                    753: @end example
                    754:
                    755: @table @t
1.3       noro      756: \JP @item $B;2>H(B
                    757: \EG @item References
1.17      ohara     758: @fref{time}, @fref{currenttime}, @fref{ctrl}.
1.1       noro      759: @end table
1.8       noro      760:
                    761: \JP @node timer,,, $B$=$NB>(B
                    762: \EG @node timer,,, Miscellaneouses
                    763: @subsection @code{timer}
                    764: @findex timer
                    765:
                    766: @table @t
                    767: @item timer(@var{interval},@var{expr},@var{val})
                    768: \JP :: $B@)8B;~4V$D$-$G7W;;$r<B9T$9$k(B.
1.17      ohara     769: \EG :: Compute an expression under the interval timer.
1.8       noro      770: @end table
                    771:
                    772: @table @var
                    773: @item return
                    774: \JP $B7k2L(B
                    775: \EG result
                    776:
                    777: @item interval
                    778: \JP $B@)8B;~4V(B ($BIC(B)
                    779: \EG interval (second)
                    780:
                    781: @item expr
                    782: \JP $B7W;;$9$k<0(B
                    783: \EG expression to be computed
                    784:
                    785: @item val
                    786: \JP $B%?%$%^$K$h$kCfCG;~$NLa$jCM(B
                    787: \EG a value to be returned when the timer is expired
                    788: @end table
                    789:
                    790: @itemize @bullet
                    791:
                    792: \BJP
                    793: @item
                    794: @code{timer()} $B$O(B, $B;~4V$r;XDj$7$F7W;;$r<B9T$9$k(B. $B;XDj;~4VFb$K7W;;$,40N;(B
                    795: $B$7$?>l9g$=$NCM$rJV$9(B. $B;XDj;~4VFb$K7W;;$,40N;$7$J$+$C$?>l9g(B, $BBh(B 3 $B0z?t(B
                    796: $B$rJV$9(B.
                    797:
                    798: @item
                    799: $BBh(B 3 $B0z?t$NCM$O(B, $B7W;;$,40N;$7$?>l9g$NCM$H6hJL$G$-$kI,MW$,$"$k(B.
                    800: \E
                    801:
                    802: \BEG
                    803: @item
                    804: @code{timer()} computes an expression under the interval timer.
                    805: If the computation finishes within the specified interval, it
                    806: returns the result of the computation. Otherwise it returns the third
                    807: argument.
                    808:
                    809: @item
                    810: The third argument should be distinguishable from the result on success.
                    811: \E
                    812:
                    813: @end itemize
                    814:
                    815: @example
                    816: [0] load("cyclic");
                    817: 1
                    818: [10] timer(10,dp_gr_main(cyclic(7),[c0,c1,c2,c3,c4,c5,c6],1,1,0),0);
                    819: interval timer expired (VTALRM)
                    820: 0
                    821: [11]
                    822: @end example
1.1       noro      823:
1.17      ohara     824: \JP @node currenttime,,, $B$=$NB>(B
                    825: \EG @node currenttime,,, Miscellaneouses
                    826: @subsection @code{currenttime}
                    827: @findex currenttime
                    828:
                    829: @table @t
                    830: @item currenttime()
                    831: \JP :: $B8=:_;~9o$r<hF@(B
                    832: \EG :: Get current time.
                    833: @end table
                    834:
                    835: @table @var
                    836: @item return
                    837: \JP 1970$BG/(B1$B7n(B1$BF|(B0$B;~(B0$BJ,(B0$BIC$+$i$N7P2aIC?t(B.
                    838: \EG UNIX time.
                    839: @end table
                    840:
                    841: @itemize @bullet
                    842:
                    843: @item
                    844: \JP @code{currenttime()} $B$O8=:_;~9o$rJV$9(B.  UNIX $B$N>l9g(B, time(3) $B$r8F$s$G$$$k$@$1$G$"$k(B.
                    845: \EG See also time(3) in UNIX manuals.
                    846:
                    847: @end itemize
                    848:
                    849: @example
                    850: [0] currenttime();
                    851: 1071639228
                    852: [1]
                    853: @end example
                    854:
                    855: \JP @node sleep,,, $B$=$NB>(B
                    856: \EG @node sleep,,, Miscellaneouses
                    857: @subsection @code{sleep}
                    858: @findex sleep
                    859:
                    860: @table @t
                    861: @item sleep(@var{interval})
                    862: \JP :: $B%W%m%;%9$N<B9T$rDd;_(B
                    863: \EG :: Suspend computation for an interval.
                    864: @end table
                    865:
                    866: @table @var
                    867: @item return
                    868: 1
                    869:
                    870: @item interval
                    871: \JP $BDd;_;~4V(B ($B%^%$%/%mIC(B)
                    872: \EG interval (micro second)
                    873: @end table
                    874:
                    875: @itemize @bullet
                    876:
                    877: @item
                    878: \JP @code{sleep()} $B$O(B, $B%W%m%;%9$N<B9T$rDd;_$9$k(B.  UNIX $B$N>l9g(B, usleep $B$r8F$s$G$$$k$@$1$G$"$k(B.
                    879: \EG See also usleep(3) in UNIX manuals.
                    880:
                    881: @end itemize
                    882:
                    883: @example
                    884: [0] sleep(1000);
                    885: 1
                    886: [1]
                    887: @end example
                    888:
1.3       noro      889: \JP @node heap,,, $B$=$NB>(B
                    890: \EG @node heap,,, Miscellaneouses
1.1       noro      891: @subsection @code{heap}
                    892: @findex heap
                    893:
                    894: @table @t
                    895: @item heap()
1.3       noro      896: \JP :: $B8=:_$N%R!<%W$NBg$-$5$rJV$9(B. ($BC10L(B:$B%P%$%H(B)
                    897: \EG :: Heap area size currently in use.
1.1       noro      898: @end table
                    899:
                    900: @table @var
                    901: @item return
1.3       noro      902: \JP $B<+A3?t(B
                    903: \EG non-negative integer
1.1       noro      904: @end table
                    905:
                    906: @itemize @bullet
1.3       noro      907: \BJP
1.1       noro      908: @item
                    909: $B8=:_$N%R!<%W$NBg$-$5(B($BC10L(B : $B%P%$%H(B) $B$rJV$9(B. $B%R!<%W$H$O(B, @b{Asir} $B$N(B
                    910: $B$5$^$6$^$J?t<0$d(B, $B%f!<%6%W%m%0%i%`$J$I$,$*$+$l$k%a%b%j$NNN0h$G(B, $B%,!<%Y%8(B
                    911: $B%3%l%/%?$K$h$j4IM}$5$l$F$$$k(B. $B%W%m%0%i%`$NF0:nCf$O(B, $B%R!<%W$NBg$-$5$O(B
                    912: $BC1D4Hs8:>/$G$"$j(B, $B<B%a%b%j$NNL$r$3$($FBg$-$/$J$C$?>l9g$K$O(B, OS $B$K$h$k(B
                    913: $B%9%o%C%W%(%j%"$X$NFI$_=q$-$,$[$H$s$I$N7W;;;~4V$r@j$a$k$3$H$K$J$k(B.
                    914: @item
                    915: $B<B%a%b%j$,>/$J$$>l9g$K$O(B, $B5/F0;~$N(B @code{-adj} $B%*%W%7%g%s$K$h$j(B,
                    916: GC $B<gBN$N@_Dj$r9T$C$F$*$/I,MW$,$"$k(B.
1.3       noro      917: \E
                    918: \BEG
                    919: @item
                    920: Command @code{heap()} returns an integer which is the byte size
                    921: of current @b{Asir} heap area.
                    922:
                    923: Heap is a memory area where various data for expressions and
                    924: user programs of @b{Asir} and is managed by the garbage collector.
                    925: While @b{Asir} is running, size of the heap is monotonously
                    926: non-decreasing against the time elapsed.  If it happens to exceed the
                    927: real memory size, most (real world) time is consumed for swapping between
                    928: real memory and disk memory.
                    929: @item
                    930: For a platform with little real memory, it is recommended to set up
                    931: @b{Asir} configuration tuned for GC functions by @code{-adj} option
                    932: at the activation of @b{Asir}. (@xref{Command line options}.)
                    933: \E
1.1       noro      934: @end itemize
                    935:
                    936: @example
                    937: % asir -adj 16
                    938: [0] load("fctrdata")$
                    939: 0
                    940: [97] cputime(1)$
                    941: 0msec
                    942: [98] heap();
                    943: 524288
                    944: 0msec
                    945: [99] fctr(Wang[8])$
                    946: 3.190sec + gc : 3.420sec
                    947: [100] heap();
                    948: 1118208
                    949: 0msec
                    950: [101] quit;
                    951: % asir
                    952: [0] load("fctrdata")$
                    953: 0
                    954: [97] cputime(1)$
                    955: 0msec
                    956: [98] heap();
                    957: 827392
                    958: 0msec
                    959: [99] fctr(Wang[8])$
                    960: 3.000sec + gc : 1.180sec
                    961: [100] heap();
                    962: 1626112
                    963: 0msec
                    964: [101] quit;
                    965: @end example
                    966:
                    967: @table @t
1.3       noro      968: \JP @item $B;2>H(B
                    969: \EG @item References
                    970: \JP @fref{$B%3%^%s%I%i%$%s%*%W%7%g%s(B}.
                    971: \EG @fref{Command line options}.
1.1       noro      972: @end table
                    973:
1.3       noro      974: \JP @node version,,, $B$=$NB>(B
                    975: \EG @node version,,, Miscellaneouses
1.1       noro      976: @subsection @code{version}
                    977: @findex version
                    978:
                    979: @table @t
                    980: @item version()
1.3       noro      981: \JP :: @b{Asir} $B$N%P!<%8%g%s$rJV$9(B.
                    982: \EG :: Version identification number of  @b{Asir}.
1.1       noro      983: @end table
                    984:
                    985: @table @var
                    986: @item return
1.3       noro      987: \JP $B<+A3?t(B
                    988: \EG integer
1.1       noro      989: @end table
                    990:
                    991: @itemize @bullet
1.3       noro      992: \BJP
1.1       noro      993: @item
1.3       noro      994: @b{Asir} $B$N%P!<%8%g%s$r<+A3?t$GJV$9(B.
                    995: \E
                    996: \BEG
1.17      ohara     997: @item
                    998: Command @code{version()} returns the version identification number,
                    999: an integer of @b{Asir} in use.
1.3       noro     1000: \E
1.1       noro     1001: @end itemize
                   1002:
                   1003: @example
                   1004: [0] version();
1.3       noro     1005: 991214
1.1       noro     1006: @end example
                   1007:
1.3       noro     1008: \JP @node shell,,, $B$=$NB>(B
                   1009: \EG @node shell,,, Miscellaneouses
1.1       noro     1010: @subsection @code{shell}
                   1011: @findex shell
                   1012:
                   1013: @table @t
                   1014: @item shell(@var{command})
1.3       noro     1015: \JP :: @var{command} $B$r%7%'%k%3%^%s%I$H$7$F<B9T$9$k(B.
                   1016: \EG :: Execute shell commands described by a string @var{command}.
1.1       noro     1017: @end table
                   1018:
                   1019: @table @var
                   1020: @item return
1.3       noro     1021: \JP $B<+A3?t(B
                   1022: \EG integer
1.1       noro     1023: @item command
1.3       noro     1024: \JP $BJ8;zNs(B
                   1025: \EG string
1.1       noro     1026: @end table
                   1027:
                   1028: @itemize @bullet
1.3       noro     1029: \BJP
1.1       noro     1030: @item
                   1031: @var{command} $B$r(B C $B$N(B @code{system()} $BH!?t$K$h$j%7%'%k%3%^%s%I$H$7$F<B9T$9$k(B.
                   1032: $B%7%'%k$N=*N;%9%F!<%?%9$rJV$9(B.
1.3       noro     1033: \E
                   1034: \BEG
                   1035: Execute shell commands described by a string @var{command}
                   1036: by a C function @code{system()}.  This returns the exit status of shell
                   1037: as its return value.
                   1038: \E
1.1       noro     1039: @end itemize
                   1040:
                   1041: @example
                   1042: [0] shell("ls");
1.12      noro     1043: alg           da            katsura       ralg          suit
                   1044: algt          defs.h        kimura        ratint        test
                   1045: alpi          edet          kimura3       robot         texput.log
                   1046: asir.o        fee           mfee          sasa          wang
                   1047: asir_symtab   gr            mksym         shira         wang_data
                   1048: base          gr.h          mp            snf1          wt
                   1049: bgk           help          msubst        solve
                   1050: chou          hom           p             sp
                   1051: const         ifplot        proot         strum
                   1052: cyclic        is            r             sugar
1.1       noro     1053: 0
                   1054: [1]
                   1055: @end example
                   1056:
1.3       noro     1057: \JP @node map,,, $B$=$NB>(B
                   1058: \EG @node map,,, Miscellaneouses
1.1       noro     1059: @subsection @code{map}
                   1060: @findex map
                   1061:
                   1062: @table @t
                   1063: @item map(@var{function},@var{arg0},@var{arg1},...)
1.3       noro     1064: \JP :: $B%j%9%H(B, $BG[Ns$N3FMWAG$KH!?t$rE,MQ$9$k(B.
                   1065: \EG :: Applies a function to each member of a list or an array.
1.1       noro     1066: @end table
                   1067:
                   1068: @table @var
                   1069: @item return
1.3       noro     1070: \JP @var{arg0} $B$HF1$87?$N%*%V%8%'%/%H(B
                   1071: \EG an object of the same type as @var{arg0}.
1.1       noro     1072: @item function
1.3       noro     1073: \JP $BH!?tL>(B
                   1074: \EG the name of a function
1.1       noro     1075: @item arg0
1.3       noro     1076: \JP $B%j%9%H(B, $B%Y%/%H%k(B, $B9TNs(B
                   1077: \EG list, vector or matrix
1.11      noro     1078: @item arg1  ...
1.3       noro     1079: \JP $BG$0U(B ($B;D$j$N0z?t(B)
                   1080: \EG arbitrary (the rest of arguments)
1.1       noro     1081: @end table
                   1082:
                   1083: @itemize @bullet
1.3       noro     1084: \BJP
1.1       noro     1085: @item
                   1086: @var{arg0} $B$N3FMWAG$r:G=i$N0z?t(B, @var{arg1} $B0J2<$N;D$j$N0z?t$H$7$F(B
                   1087: $BH!?t(B @var{function} $B$r8F$S=P$7(B, @var{arg0} $B$NBP1~$9$kMWAG$N0LCV$K(B
                   1088: $BH!?t8F$S=P$7$N7k2L$,F~$C$?F1$87?$N%*%V%8%'%/%H$r@8@.$7$FJV$9(B.
                   1089: @item
                   1090: @var{function} $B$O(B, $B%@%V%k%/%)!<%H$N$J$$H!?tL>$rMQ$$$k(B.
                   1091: @item
                   1092: @var{function} $B$K%W%m%0%i%`JQ?t$O;H$($J$$(B.
                   1093: @item
                   1094: @var{arg0} $B$,%j%9%H(B, $B%Y%/%H%k(B, $B9TNs0J30$N>l9g(B, $BC1$K(B @var{arg0},
                   1095: @var{arg1}, ... $B$r0z?t$H$7$F(B @var{function} $B$r8F$S=P$7$=$N(B
                   1096: $B7k2L$rJV$9(B.
1.17      ohara    1097: @item
                   1098: @code{map} $B$N0z?t(B @var{function} $B$GM?$($i$l$kH!?t$O(B, $BFbItE*$K$bH!?t$H(B
                   1099: $B$7$F<BAu$5$l$F$$$J$1$l$P$J$i$J$$(B.  $B$=$&$G$J$1$l$P(B parse error $B$K$J$k(B.
1.18      ohara    1100: $BNc$($P(B @code{map} $B<+?H$d(B @code{car}, @code{cdr} $B$J$I$OFbItE*$K$OH!?t$G(B
                   1101: $B$O$J$/(B, Asir $B$NJ8K!$K$*$1$k%-!<%o!<%I$H$7$F<BAu$5$l$F$$$k(B.  $B$7$?$,$C$F(B
                   1102: @code{map} $B$N0z?t$K(B @code{map} $B$r$H$k$3$H$O$G$-$J$$(B.
1.3       noro     1103: \E
                   1104: \BEG
                   1105: @item
                   1106: Returns an object of the same type as @var{arg0}. Each member of the
                   1107: returned object is the return value of a function call where the first
                   1108: argument is the member of @var{arg0} corresponding to the member in
                   1109: the returned object and the rest of the argument are @var{arg1},
                   1110: @dots{}.
                   1111: @item
                   1112: @var{function} is a function name itself without @samp{"}.
                   1113: @item
                   1114: A program variable cannot be used as @var{function}.
                   1115: @item
                   1116: If @var{arg0} is neither list nor array this function simply
                   1117: returns the value of @var{function}(@var{arg0},@var{arg1},@dots{}).
                   1118: \E
1.1       noro     1119: @end itemize
                   1120:
                   1121: @example
                   1122: [82] def afo(X) @{ return X^3; @}
                   1123: [83] map(afo,[1,2,3]);
                   1124: [1,8,27]
                   1125: @end example
                   1126:
1.3       noro     1127: \JP @node flist,,, $B$=$NB>(B
                   1128: \EG @node flist,,, Miscellaneouses
1.1       noro     1129: @subsection @code{flist}
                   1130: @findex flist
                   1131:
                   1132: @table @t
1.22      noro     1133: @item flist([mname])
1.3       noro     1134: \JP :: $B8=:_Dj5A$5$l$F$$$kH!?tL>$rJ8;zNs%j%9%H$H$7$FJV$9(B.
                   1135: \EG :: Returns the list of function names currently defined.
1.22      noro     1136: @item mname
                   1137: \JP $B%b%8%e!<%kL>(B
                   1138: \EG a module name
1.1       noro     1139: @end table
                   1140:
                   1141: @table @var
                   1142: @item return
1.3       noro     1143: \JP $BJ8;zNs$N%j%9%H(B
                   1144: \EG list of character strings
1.1       noro     1145: @end table
                   1146:
                   1147: @itemize @bullet
1.3       noro     1148: \BJP
1.1       noro     1149: @item
                   1150: $B8=:_Dj5A$5$l$F$$$kAH$_9~$_H!?t(B, $B%f!<%6Dj5AH!?t$NH!?tL>$rJ8;zNs%j%9%H(B
1.22      noro     1151: $B$H$7$FJV$9(B. $B%b%8%e!<%kL>$,;XDj$5$l$?>l9g(B, $B$=$N%b%8%e!<%k$GDj5A$5$l$F$$$k(B
                   1152: $B4X?tL>$N$_$rJV$9(B.
1.1       noro     1153: @item
                   1154: $B%7%9%F%`H!?t$N8e$K%f!<%6Dj5AH!?t$,B3$/(B.
1.3       noro     1155: \E
                   1156: \BEG
                   1157: @item
                   1158: Returns the list of names of built-in functions and user defined functions
                   1159: currently defined. The return value is a list of character strings.
1.22      noro     1160: If a module name is specified, only the names of functions defined in the module
                   1161: are returned.
1.3       noro     1162: @item
                   1163: The names of built-in functions are followed by those of user defined
                   1164: functions.
                   1165: \E
1.1       noro     1166: @end itemize
                   1167:
                   1168: @example
                   1169: [77] flist();
                   1170: [defpoly,newalg,mainalg,algtorat,rattoalg,getalg,alg,algv,...]
                   1171: @end example
                   1172:
1.3       noro     1173: \JP @node delete_history,,, $B$=$NB>(B
                   1174: \EG @node delete_history,,, Miscellaneouses
1.1       noro     1175: @subsection @code{delete_history}
                   1176: @findex delete_history
                   1177:
                   1178: @table @t
                   1179: @item delete_history([@var{index}])
1.3       noro     1180: \JP :: $B%R%9%H%j$r>C5n$9$k(B.
                   1181: \EG :: Deletes the history.
1.1       noro     1182: @end table
                   1183:
                   1184: @table @var
                   1185: @item return
                   1186: 0
                   1187: @item index
1.3       noro     1188: \JP $B>C5n$7$?$$%R%9%H%j$NHV9f(B
                   1189: \EG Index of history to be deleted.
1.1       noro     1190: @end table
                   1191:
                   1192: @itemize @bullet
1.3       noro     1193: \BJP
1.1       noro     1194: @item
                   1195: $B0z?t$,$J$$$H$-(B, $B$3$l$^$G7W;;$7$?%R%9%H%j$rA4$F>C5n$9$k(B.
                   1196: @item
                   1197: $B0z?t$,$"$k$H$-(B, $B$=$NHV9f$N7k2L$N$_>C5n$9$k(B.
                   1198: @item
                   1199: $B$3$3$G%R%9%H%j$H$O(B, $BHV9f$D$-$N%W%m%s%W%H$KBP$7$F$NF~NO$rI>2A$7$FF@$i$l$?<0(B
                   1200: $B$G(B, $B$3$N<0$O(B @code{@@@var{number}} $B$K$h$j<h$j=P$9$3$H$,$G$-$k(B. $B$3$N$3$H$O(B,
                   1201: $B%,!<%Y%C%8%3%l%/%7%g%s$N:]$K$b$3$N<0$,@8$-;D$k$3$H$r0UL#$9$k(B.
                   1202: @item
                   1203: $BBg$-$J<0$,%R%9%H%j$H$7$F;D$C$?>l9g(B, $B0J9_$N%a%b%j4IM}$K;Y>c$rMh$9>l9g$,B?$$(B
                   1204: $B$?$a(B, @code{bsave()} $B$J$I$G%U%!%$%k$K%;!<%V$7$F(B, @code{delete_history()}
                   1205: $B$K$h$j%R%9%H%j$r>C5n$7$F$*$/$N$,M-8z$G$"$k(B.
1.3       noro     1206: \E
                   1207: \BEG
                   1208: @item
                   1209: Deletes all the histories without an argument.
                   1210: @item
                   1211: Deletes the history with index @var{index} if specified.
                   1212: @item
                   1213: A history is an expression which has been obtained by evaluating an input
                   1214: given for a prompt with an index. It can be taken out by @code{@@@var{index}},
                   1215: which means that the expression survives garbage collections.
                   1216: @item
                   1217: A large history may do harm in the subsequent memory management and
                   1218: deleting the history by @code{delete_history()}, after saving it in a file
                   1219: by @code{bsave()}, is often effective.
                   1220: \E
1.1       noro     1221: @end itemize
                   1222:
                   1223: @example
                   1224: [0] (x+y+z)^100$
                   1225: [1] @@0;
                   1226: ...
                   1227: [2] delete_history(0);
                   1228: [3] @@0;
                   1229: 0
                   1230: @end example
                   1231:
1.3       noro     1232: \JP @node get_rootdir,,, $B$=$NB>(B
                   1233: \EG @node get_rootdir,,, Miscellaneouses
1.1       noro     1234: @subsection @code{get_rootdir}
                   1235: @findex get_rootdir
                   1236:
                   1237: @table @t
                   1238: @item get_rootdir()
1.3       noro     1239: \JP :: Asir $B$N%k!<%H%G%#%l%/%H%jL>$r<h$j=P$9(B
                   1240: \EG :: Gets the name of @b{Asir} root directory.
1.1       noro     1241: @end table
                   1242:
                   1243: @table @var
                   1244: @item return
1.3       noro     1245: \JP $BJ8;zNs(B
                   1246: \EG string
1.1       noro     1247: @end table
                   1248:
                   1249: @itemize @bullet
1.3       noro     1250: \BJP
1.1       noro     1251: @item
                   1252: UNIX $BHG$N>l9g(B, $B4D6-JQ?t(B @code{ASIR_LIBDIR} $B$,Dj5A$5$l$F$$$k>l9g$K$O$=$NCM(B, $B$5$l$F$$$J$$>l9g(B
                   1253: $B$K$O(B @samp{/usr/local/lib/asir} $B$rJV$9(B.
                   1254: @item
                   1255: Windows $BHG$N>l9g(B, @samp{asirgui.exe} $B$N$"$k%G%#%l%/%H%j(B (@samp{bin} $B$H$$$&L>A0$N$O$:$G$"$k(B)
                   1256: $B$N?F%G%#%l%/%H%j$,JV$5$l$k(B.
                   1257: @item
                   1258: $B$3$N4X?t$,JV$9%G%#%l%/%H%jL>$r4p=`$H$7$?AjBP%Q%9L>$r;XDj$9$k$3$H$K$h$j(B, $B%$%s%9%H!<%k(B
                   1259: $B$5$l$?>l=j$K$h$i$J$$%U%!%$%kFI$_9~$_%W%m%0%i%`$r=q$/$3$H$,$G$-$k(B.
1.3       noro     1260: \E
                   1261: \BEG
                   1262: @item
                   1263: On UNIX it returns the value of an environment variable @code{ASIR_LIBDIR}
                   1264: or @samp{/usr/local/lib/asir} if @code{ASIR_LIBDIR} is not set.
                   1265: @item
                   1266: On Windows the name of @b{Asir} root directory is returned.
                   1267: @item
                   1268: By using relative path names from the value of this function,
                   1269: one can write programs which contain file operations independent
                   1270: of the install directory.
                   1271: \E
1.1       noro     1272: @end itemize
1.2       noro     1273:
                   1274:
1.3       noro     1275: \JP @node getopt,,, $B$=$NB>(B
                   1276: \EG @node getopt,,, Miscellaneouses
1.2       noro     1277: @subsection @code{getopt}
                   1278: @findex getopt
                   1279:
                   1280: @table @t
1.9       noro     1281: @item getopt([@var{key}])
1.3       noro     1282: \JP :: $B%*%W%7%g%s$NCM$rJV$9(B.
                   1283: \EG :: Returns the value of an option.
1.2       noro     1284: @end table
                   1285:
                   1286: @table @var
                   1287: @item return
1.3       noro     1288: \JP $B%*%V%8%'%/%H(B
                   1289: \EG object
1.2       noro     1290: @end table
                   1291:
                   1292: @itemize @bullet
1.3       noro     1293: \BJP
1.2       noro     1294: @item
                   1295: $B%f!<%6Dj5A4X?t$O(B, $B8GDj8D?t0z?t$G$7$+@k8@$G$-$J$$(B. $B%f!<%6Dj5A4X?t$G(B
                   1296: $B2DJQ8D0z?t$r<B8=$9$kJ}K!$N0l$D$H$7$F(B, $B%*%W%7%g%s$K$h$k0z?t$N;XDj(B
                   1297: $B$,$"$k(B (@pxref{$B%*%W%7%g%s;XDj(B}). $B;XDj$5$l$?%*%W%7%g%s$r4X?tFb$G(B
                   1298: $B<u$1<h$k$?$a$K$3$N4X?t$rMQ$$$k(B.
                   1299: @item
1.9       noro     1300: $BL50z?t$G8F$S=P$5$l$?>l9g(B, @code{getopt()} $B$O(B
                   1301: @code{[[key1,value1],[key2,value2],...]} $B$J$k%j%9%H$rJV$9(B.
                   1302: $B$3$3$G(B, @code{key} $B$O4X?t8F$S=P$7;~$K;XDj$5$l$?%*%W%7%g%s(B, @code{value}
                   1303: $B$O$=$NCM$G$"$k(B.
                   1304: @item
1.2       noro     1305: $B4X?t8F$S=P$7$N:]$K(B @var{key} $B$,%*%W%7%g%s$H$7$F;XDj$5$l$F$$$k(B
                   1306: $B>l9g$K$O(B, $B$=$NCM$rJV$9(B. $B$b$7;XDj$,$J$$>l9g$K$O(B, VOID $B7?%*%V%8%'%/%H(B
                   1307: ($B7?<1JL;R(B -1) $B$rJV$9(B. @code{getopt()} $B$,JV$7$?CM$N7?$r(B @code{type()}
                   1308: $B$GD4$Y$k$3$H$G(B, $B$=$N%*%W%7%g%s$,;XDj$5$l$?$+$I$&$+D4$Y$k$3$H$,$G$-$k(B.
                   1309: @item
                   1310: $B4X?t8F$S=P$7$K$*$1$k%*%W%7%g%s$N;XDj$O(B, $B@55,$N0z?t$J$i$S$N8e$m$K(B,
                   1311:
                   1312: @example
                   1313: xxx(A,B,C,D|x=X,y=Y,z=Z)
                   1314: @end example
                   1315:
                   1316: $B$H$$$&Iw$K(B, @samp{|} $B$KB3$/(B, @var{key=value} $B$N(B @samp{,} $B$G6h@Z$i$l$?(B
                   1317: $BJB$S$rCV$/$3$H$G9T$&(B.
1.3       noro     1318: \E
                   1319: \BEG
                   1320: @item
                   1321: When a user defined function is called, the number of arguments
                   1322: must be equal to that in the declaration of the function.
                   1323: A function with indefinite number of arguments can be realized
                   1324: by using @var{options} (@pxref{option}).
                   1325: The value of a specified option is retrieved by @code{getopt}.
1.9       noro     1326: @item
                   1327: If @code{getopt()} is called with no argument, then it returns a list
1.12      noro     1328: @code{[[key1,value1],} @code{[key2,value2],@dots{}]}.
                   1329: In the list, each @code{key}
1.9       noro     1330: is an option which was specified when the function executing @code{getopt}
                   1331: was invoked, and @code{value} is the value of the option.
1.3       noro     1332: @item
                   1333: If an option @var{key} is specified upon a function call, @code{getopt}
                   1334: return the value of the option. If such an option is not specified,
                   1335: the it returns an object of VOID type whose object identifier is
                   1336: -1. By examining the type of the returned value with @code{type()},
                   1337: one knows whether the option is set or not.
                   1338: @item
                   1339: Options are specified as follows:
                   1340:
                   1341: @example
                   1342: xxx(A,B,C,D|x=X,y=Y,z=Z)
                   1343: @end example
                   1344:
                   1345: That is, the options are specified by a sequence of @var{key=value} seperated
                   1346: by @samp{,}, after @samp{|}.
                   1347: \E
1.2       noro     1348: @end itemize
                   1349:
                   1350: @table @t
1.3       noro     1351: \JP @item $B;2>H(B
                   1352: \EG @item References
                   1353: \JP @fref{$B%*%W%7%g%s;XDj(B}, @fref{type}.
                   1354: \EG @fref{option}, @fref{type}.
                   1355: @end table
                   1356:
                   1357: \JP @node getenv,,, $B$=$NB>(B
                   1358: \EG @node getenv,,, Miscellaneouses
                   1359: @subsection @code{getenv}
                   1360: @findex getenv
                   1361:
                   1362: @table @t
                   1363: @item getenv(@var{name})
                   1364: \JP :: $B4D6-JQ?t$NCM$rJV$9(B.
                   1365: \EG :: Returns the value of an environment variable.
                   1366: @end table
                   1367:
                   1368: @table @var
                   1369: @item return
                   1370: @itemx name
                   1371: \JP $BJ8;zNs(B
                   1372: \EG string
1.2       noro     1373: @end table
                   1374:
1.3       noro     1375: @itemize @bullet
                   1376: @item
                   1377: \JP $B4D6-JQ?t(B @var{name} $B$NCM$rJV$9(B.
                   1378: \EG Returns the value of an environment variable @var{name}.
                   1379: @end itemize
                   1380:
                   1381: @example
                   1382: [0] getenv("HOME");
                   1383: /home/pcrf/noro
                   1384: @end example
1.1       noro     1385:
                   1386:
                   1387:

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