| version 1.4, 2000/01/26 01:37:32 |
version 1.7, 2003/04/20 08:01:25 |
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| @comment $OpenXM: OpenXM/src/asir-doc/parts/asir.texi,v 1.3 1999/12/21 02:47:31 noro Exp $ |
@comment $OpenXM: OpenXM/src/asir-doc/parts/asir.texi,v 1.6 2002/09/03 01:50:57 noro Exp $ |
| \BJP |
\BJP |
| @node $B%f!<%68@8l(B Asir,,, Top |
@node $B%f!<%68@8l(B Asir,,, Top |
| @chapter $B%f!<%68@8l(B Asir |
@chapter $B%f!<%68@8l(B Asir |
| Line 254 comprehensible than use of structure like C programs. |
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| Line 254 comprehensible than use of structure like C programs. |
|
| * return $BJ8(B:: |
* return $BJ8(B:: |
| * if $BJ8(B:: |
* if $BJ8(B:: |
| * $B%k!<%W(B break return continue:: |
* $B%k!<%W(B break return continue:: |
| |
* $B9=B$BNDj5A(B:: |
| * $B$5$^$6$^$J<0(B:: |
* $B$5$^$6$^$J<0(B:: |
| * $B%W%j%W%m%;%C%5(B:: |
* $B%W%j%W%m%;%C%5(B:: |
| * $B%*%W%7%g%s;XDj(B:: |
* $B%*%W%7%g%s;XDj(B:: |
| Line 267 comprehensible than use of structure like C programs. |
|
| Line 268 comprehensible than use of structure like C programs. |
|
| * return statement:: |
* return statement:: |
| * if statement:: |
* if statement:: |
| * loop break return continue:: |
* loop break return continue:: |
| |
* structure definition:: |
| * various expressions:: |
* various expressions:: |
| * preprocessor:: |
* preprocessor:: |
| * option:: |
* option:: |
|
|
| @samp{/*} $B$,$$$/$D$"$C$F$b:G=i$N$b$N$N$_$,M-8z$H$J$j(B, $B:G=i$K8=$l$?(B |
@samp{/*} $B$,$$$/$D$"$C$F$b:G=i$N$b$N$N$_$,M-8z$H$J$j(B, $B:G=i$K8=$l$?(B |
| @samp{*/} $B$G%3%a%s%H$O=*N;$7$?$H8+$J$5$l$k(B. $B%W%m%0%i%`$J$I$G(B, $B%3%a%s%H(B |
@samp{*/} $B$G%3%a%s%H$O=*N;$7$?$H8+$J$5$l$k(B. $B%W%m%0%i%`$J$I$G(B, $B%3%a%s%H(B |
| $B$r4^$`2DG=@-$,$"$kItJ,$r%3%a%s%H%"%&%H$7$?>l9g$K$O(B, @code{#if 0}, |
$B$r4^$`2DG=@-$,$"$kItJ,$r%3%a%s%H%"%&%H$7$?>l9g$K$O(B, @code{#if 0}, |
| @code{#endif}$B$r;H$($P$h$$(B. (@xref{$B%W%j%W%m%;%C%5(B}) |
@code{#endif}$B$r;H$($P$h$$(B. (@xref{$B%W%j%W%m%;%C%5(B}.) |
| \E |
\E |
| \BEG |
\BEG |
| A comment can span to several lines, but it cannot be nested. |
A comment can span to several lines, but it cannot be nested. |
| Line 583 in the subsequent text exist, and the comment terminat |
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| Line 585 in the subsequent text exist, and the comment terminat |
|
| @samp{*/}. |
@samp{*/}. |
| |
|
| In order to comment out a program part that may contain comments in it, |
In order to comment out a program part that may contain comments in it, |
| use the pair, @code{#if 0} and @code{#endif}. (@xref{preprocessor}) |
use the pair, @code{#if 0} and @code{#endif}. (@xref{preprocessor}.) |
| \E |
\E |
| |
|
| @example |
@example |
|
|
| \BJP |
\BJP |
| $B$N$h$&$K(B, $B<0$K=*C<5-9f(B (@samp{;} $B$^$?$O(B @samp{$}) $B$r$D$1$?$b$N$G$"$k(B. |
$B$N$h$&$K(B, $B<0$K=*C<5-9f(B (@samp{;} $B$^$?$O(B @samp{$}) $B$r$D$1$?$b$N$G$"$k(B. |
| $B$3$NC1J85Z$SN`;w$N(B @code{return} $BJ8(B, @code{break} $BJ8$J$I$,J8$N:G>.9=@.(B |
$B$3$NC1J85Z$SN`;w$N(B @code{return} $BJ8(B, @code{break} $BJ8$J$I$,J8$N:G>.9=@.(B |
| $BC10L$H$J$k(B. @code{if} $BJ8$d(B @code{for} $BJ8$NDj5A(B (@xref{$BJ8K!$N>\:Y(B}) $B$r8+$l(B |
$BC10L$H$J$k(B. @code{if} $BJ8$d(B @code{for} $BJ8$NDj5A(B (@ref{$BJ8K!$N>\:Y(B}) $B$r8+$l(B |
| $B$P$o$+$kDL$j(B, $B$=$l$i$NK\BN$O(B, $BC1$J$k0l$D$NJ8$H$7$FDj5A$5$l$F$$$k(B. $BDL>o(B |
$B$P$o$+$kDL$j(B, $B$=$l$i$NK\BN$O(B, $BC1$J$k0l$D$NJ8$H$7$FDj5A$5$l$F$$$k(B. $BDL>o(B |
| $B$O(B, $BK\BN$K$OJ#?t$NJ8$,=q$1$k$3$H$,I,MW$H$J$k(B. $B$3$N$h$&$J>l9g(B, |
$B$O(B, $BK\BN$K$OJ#?t$NJ8$,=q$1$k$3$H$,I,MW$H$J$k(B. $B$3$N$h$&$J>l9g(B, |
| @samp{@{} $B$H(B @samp{@}} $B$GJ8$NJB$S$r3g$C$F(B, $B0l$D$NJ8$H$7$F07$&$3$H$,$G(B |
@samp{@{} $B$H(B @samp{@}} $B$GJ8$NJB$S$r3g$C$F(B, $B0l$D$NJ8$H$7$F07$&$3$H$,$G(B |
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| |
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| @example |
@example |
| \JP for ( $B<0JB$S(B-1; $B<0(B; $B<0JB$S(B-2 ) $BJ8(B |
\JP for ( $B<0JB$S(B-1; $B<0(B; $B<0JB$S(B-2 ) $BJ8(B |
| \EG for ( expression list-1; expression; expression list-2 ) statement |
\EG for ( expr list-1; expr; expr list-2 ) statement |
| @end example |
@end example |
| |
|
| \JP $B$G(B, $B$3$l$O(B |
\JP $B$G(B, $B$3$l$O(B |
| Line 903 while ( $B<0(B ) @{ |
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| Line 905 while ( $B<0(B ) @{ |
|
| @} |
@} |
| \E |
\E |
| \BEG |
\BEG |
| expression list-1 (transformed into a sequence of simple statement) |
expr list-1 (transformed into a sequence of simple statement) |
| while ( expression ) @{ |
while ( expr ) @{ |
| statement |
statement |
| expression list-2 (transformed into a sequence of simple statement) |
expr list-2 (transformed into a sequence of simple statement) |
| @} |
@} |
| \E |
\E |
| @end example |
@end example |
| Line 990 statement, and the termination condition will be evalu |
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| Line 992 statement, and the termination condition will be evalu |
|
| @end itemize |
@end itemize |
| |
|
| \BJP |
\BJP |
| |
@node $B9=B$BNDj5A(B,,, $B%f!<%6Dj5AH!?t$N=q$-J}(B |
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@subsection $B9=B$BNDj5A(B |
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\E |
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\BEG |
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@node structure definition,,, Writing user defined functions |
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@subsection structure definition |
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\E |
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|
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\BJP |
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$B9=B$BN$H$O(B, $B3F@.J,$NMWAG$,L>A0$G%"%/%;%9$G$-$k8GDjD9G[Ns$H;W$C$F$h$$(B. |
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$B3F9=B$BN$OL>A0$G6hJL$5$l$k(B. $B9=B$BN$O(B, @code{struct} $BJ8$K$h$j@k8@$5$l$k(B. |
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$B$"$k7?$N9=B$BN$O(B, $BAH$_9~$_4X?t(B @code{newstruct} $B$K$h$j@8@.$5$l$k(B. |
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$B9=B$BN$N3F%a%s%P$O(B, $B1i;;;R(B @code{->} $B$K$h$j%"%/%;%9$9$k(B. |
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$B%a%s%P$,9=B$BN$N>l9g(B, @code{->} $B$K$h$k;XDj$OF~$l;R$K$G$-$k(B. |
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\E |
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|
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\BEG |
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A structure data type is a fixed length array and each component of the array |
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is accessed by its name. Each type of structure is distinguished by its name. |
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A structure data type is declared by @code{struct} statement. |
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A structure object is generated by a builtin function @code{newstruct}. |
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Each member of a structure is accessed by an operatator @code{->}. |
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If a member of a structure is again a structure, then the specification |
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by @code{->} can be nested. |
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\E |
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|
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@example |
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[1] struct rat @{num,denom@}; |
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0 |
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[2] A = newstruct(rat); |
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@{0,0@} |
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[3] A->num = 1; |
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1 |
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[4] A->den = 2; |
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2 |
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[5] A; |
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@{1,2@} |
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@end example |
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|
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\BJP |
| @node $B$5$^$6$^$J<0(B,,, $B%f!<%6Dj5AH!?t$N=q$-J}(B |
@node $B$5$^$6$^$J<0(B,,, $B%f!<%6Dj5AH!?t$N=q$-J}(B |
| @subsection $B$5$^$6$^$J<0(B |
@subsection $B$5$^$6$^$J<0(B |
| \E |
\E |
| Line 1095 There are special assignments combined with arithmetic |
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| Line 1137 There are special assignments combined with arithmetic |
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| |
|
| @example |
@example |
| \JP A = 2 A *= 3 ($B$3$l$O(B A = A*3 $B$HF1$8(B; $B$=$NB>$N1i;;;R$bF1MM(B) |
\JP A = 2 A *= 3 ($B$3$l$O(B A = A*3 $B$HF1$8(B; $B$=$NB>$N1i;;;R$bF1MM(B) |
| \EG A = 2 A *= 3 (the same as A = A*3; The other combination are alike.) |
\EG A = 2 A *= 3 (the same as A = A*3; The others are alike.) |
| @end example |
@end example |
| @item |
@item |
| \JP $BH!?t8F$S=P$7(B |
\JP $BH!?t8F$S=P$7(B |
| Line 1121 A-- $BCM$O85$N(B A $B$NCM(B, A = A-1 |
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| Line 1163 A-- $BCM$O85$N(B A $B$NCM(B, A = A-1 |
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| \BEG |
\BEG |
| A++ the expression value is the previous value of A, and A = A+1 |
A++ the expression value is the previous value of A, and A = A+1 |
| A-- the expression value is the previous value of A, and A = A-1 |
A-- the expression value is the previous value of A, and A = A-1 |
| ++A A = A+1, and the expression value is the value after increment of A |
++A A = A+1, and the value is the one after increment of A |
| --A A = A-1, and the expression value is the value after decrement of A |
--A A = A-1, and the value is the one after decrement of A |
| \E |
\E |
| @end example |
@end example |
| |
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