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Diff for /OpenXM/src/asir-doc/parts/asir.texi between version 1.3 and 1.6

version 1.3, 1999/12/21 02:47:31 version 1.6, 2002/09/03 01:50:57
Line 1 
Line 1 
 @comment $OpenXM$  @comment $OpenXM: OpenXM/src/asir-doc/parts/asir.texi,v 1.5 2000/09/23 07:53:24 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 67  capital alphabetical letter in @b{Asir}.
Line 67  capital alphabetical letter in @b{Asir}.
 @item  @item
 \JP $BJQ?t$N7?$,$J$$(B.  \JP $BJQ?t$N7?$,$J$$(B.
 \EG No types for variables.  \EG No types for variables.
   @*
 \BJP  \BJP
 $B4{$K@bL@$7$?$H$*$j(B, @b{Asir} $B$G07$o$l$kBP>]<+?H$OA4$F2?$i$+$N7?(B  $B4{$K@bL@$7$?$H$*$j(B, @b{Asir} $B$G07$o$l$kBP>]<+?H$OA4$F2?$i$+$N7?(B
 $B$r;}$C$F$$$k(B. $B$7$+$7(B, $B%W%m%0%i%`JQ?t<+BN$O(B, $B$I$N$h$&$JBP>]$G$b(B  $B$r;}$C$F$$$k(B. $B$7$+$7(B, $B%W%m%0%i%`JQ?t<+BN$O(B, $B$I$N$h$&$JBP>]$G$b(B
Line 93  object can be assigned to it.
Line 93  object can be assigned to it.
 @item  @item
 \BJP  \BJP
 $BH!?tFb$NJQ?t$O(B, $B%G%U%)%k%H$G$O2>0z?t$r$3$a$F$9$Y$F6I=jJQ?t(B.  $BH!?tFb$NJQ?t$O(B, $B%G%U%)%k%H$G$O2>0z?t$r$3$a$F$9$Y$F6I=jJQ?t(B.
   @*
 $B$?$@$7(B, @code{extern} $B@k8@$5$l$?JQ?t$O(B, $B%H%C%W%l%Y%k$K$*$1$kBg0hJQ?t$H$J$k(B.  $B$?$@$7(B, @code{extern} $B@k8@$5$l$?JQ?t$O(B, $B%H%C%W%l%Y%k$K$*$1$kBg0hJQ?t$H$J$k(B.
 $B$9$J$o$A(B, $BJQ?t$N%9%3!<%W$OBg0hJQ?t$H6I=jJQ?t$N(B 2 $B<oN`$KC1=c2=$5$l$F$$$k(B.  $B$9$J$o$A(B, $BJQ?t$N%9%3!<%W$OBg0hJQ?t$H6I=jJQ?t$N(B 2 $B<oN`$KC1=c2=$5$l$F$$$k(B.
 $B%H%C%W%l%Y%k(B, $B$9$J$o$A%W%m%s%W%H$KBP$7$FF~NO$5$l$?JQ?t$OA4$FBg0hJQ?t(B  $B%H%C%W%l%Y%k(B, $B$9$J$o$A%W%m%s%W%H$KBP$7$FF~NO$5$l$?JQ?t$OA4$FBg0hJQ?t(B
Line 102  object can be assigned to it.
Line 102  object can be assigned to it.
 \BEG  \BEG
 Variables, together with formal parameters, in a function (procedure)  Variables, together with formal parameters, in a function (procedure)
 are all local to the function by default.  are all local to the function by default.
   @*
 Variables can be global at the top level,  Variables can be global at the top level,
 if they are declared with the key word @code{extern}.  if they are declared with the key word @code{extern}.
 Thus, the scope rule of @b{Asir} is very simple.  Thus, the scope rule of @b{Asir} is very simple.
Line 157  end$
Line 157  end$
 @item  @item
 \JP $B%W%m%0%i%`JQ?t$OBgJ8;z$G;O$^$j(B, $BITDj85(B, $BH!?t$O>.J8;z$G;O$^$k(B.  \JP $B%W%m%0%i%`JQ?t$OBgJ8;z$G;O$^$j(B, $BITDj85(B, $BH!?t$O>.J8;z$G;O$^$k(B.
 \EG Program variables and algebraic indeterminates are distinguished in @b{Asir}.  \EG Program variables and algebraic indeterminates are distinguished in @b{Asir}.
   @*
 \BJP  \BJP
 $B$3$NE@$O(B, $B4{B8$N?t<0=hM}%7%9%F%`$N$[$H$s$I$H0[$J$kE@$G$"$k(B. @b{Asir}  $B$3$NE@$O(B, $B4{B8$N?t<0=hM}%7%9%F%`$N$[$H$s$I$H0[$J$kE@$G$"$k(B. @b{Asir}
 $B$,$3$N;EMM$r:NMQ$7$?$N$O(B, $B%f!<%6$,ITDj85$N$D$b$j$G;HMQ$7$?JQ?t$K(B  $B$,$3$N;EMM$r:NMQ$7$?$N$O(B, $B%f!<%6$,ITDj85$N$D$b$j$G;HMQ$7$?JQ?t$K(B
Line 182  variables and indeterminates in a program.
Line 182  variables and indeterminates in a program.
 @item  @item
 \JP @code{switch} $BJ8(B, @code{goto} $B$,$J$$(B.  \JP @code{switch} $BJ8(B, @code{goto} $B$,$J$$(B.
 \EG No @code{switch} statements, and @code{goto} statements.  \EG No @code{switch} statements, and @code{goto} statements.
   @*
 \JP @code{goto} $B$,$J$$$?$a(B, $BB?=E%k!<%W$r0lEY$KH4$1$k$N$,$d$dJ#;($K$J$k>l9g$,$"$k(B.  \JP @code{goto} $B$,$J$$$?$a(B, $BB?=E%k!<%W$r0lEY$KH4$1$k$N$,$d$dJ#;($K$J$k>l9g$,$"$k(B.
 \EG Lack of @code{goto} statement makes it rather bothering to exit from within multiple loops.  \EG Lack of @code{goto} statement makes it rather bothering to exit from within multiple loops.
   
Line 195  variables and indeterminates in a program.
Line 195  variables and indeterminates in a program.
 Comma expressions are allowed only in @code{A}, @code{B} and @code{C}  Comma expressions are allowed only in @code{A}, @code{B} and @code{C}
 of the constructs @code{for (A;B;C)} or @code{while(A)}.  of the constructs @code{for (A;B;C)} or @code{while(A)}.
 \E  \E
   @*
 \JP $B$3$l$O(B, $B%j%9%H$r@5<0$J%*%V%8%'%/%H$H$7$F2C$($?$3$H$K$h$k(B.  \JP $B$3$l$O(B, $B%j%9%H$r@5<0$J%*%V%8%'%/%H$H$7$F2C$($?$3$H$K$h$k(B.
 \EG This limitation came from adopting lists as legal data objects for @b{Asir}.  \EG This limitation came from adopting lists as legal data objects for @b{Asir}.
   
Line 254  comprehensible than use of structure like C programs.
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::
Line 574  def afo(X) @{
Line 576  def afo(X) @{
 @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
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
Line 650  S = sum(N);
Line 652  S = sum(N);
 \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
Line 858  the @code{while} statement, the @code{for} statement, 
Line 860  the @code{while} statement, the @code{for} statement, 
 @item  @item
 \JP @code{while} $BJ8(B  \JP @code{while} $BJ8(B
 \EG @code{while} statement  \EG @code{while} statement
   @*
 \JP $B7A<0$O(B,  \JP $B7A<0$O(B,
 \EG It has the following form.  \EG It has the following form.
   
Line 882  infinite loop.
Line 884  infinite loop.
 @item  @item
 \JP @code{for} $BJ8(B  \JP @code{for} $BJ8(B
 \EG @code{for} statement  \EG @code{for} statement
   @*
 \JP $B7A<0$O(B,  \JP $B7A<0$O(B,
 \EG It has the following form.  \EG It has the following form.
   
Line 916  while ( expression ) @{
Line 918  while ( expression ) @{
 @item  @item
 \JP @code{do} $BJ8(B  \JP @code{do} $BJ8(B
 \EG @code{do} statement  \EG @code{do} statement
   @*
 @example  @example
 \BJP  \BJP
 do @{  do @{
Line 957  the control to a certain point of the loop.
Line 959  the control to a certain point of the loop.
   
 @item  @item
 @code{break}  @code{break}
   @*
 \JP @code{break} $BJ8$O(B, $B$=$l$r0O$`%k!<%W$r0l$D$@$1H4$1$k(B.  \JP @code{break} $BJ8$O(B, $B$=$l$r0O$`%k!<%W$r0l$D$@$1H4$1$k(B.
 \EG The @code{break} statement is used to exit the inner most loop.  \EG The @code{break} statement is used to exit the inner most loop.
 @item  @item
 @code{return}  @code{return}
   @*
 \BJP  \BJP
 @code{return} $BJ8$O(B, $B0lHL$KH!?t$+$iH4$1$k$?$a$NJ8$G$"$j(B,  @code{return} $BJ8$O(B, $B0lHL$KH!?t$+$iH4$1$k$?$a$NJ8$G$"$j(B,
 $B%k!<%W$NCf$+$i$G$bM-8z$G$"$k(B.  $B%k!<%W$NCf$+$i$G$bM-8z$G$"$k(B.
Line 974  and it is also effective in a loop.
Line 976  and it is also effective in a loop.
   
 @item  @item
 @code{continue}  @code{continue}
   @*
 \BJP  \BJP
 @code{continue} $BJ8$O(B, $B%k!<%W$NK\BN$NJ8$NKvC<$K@)8f$r0\$9(B.  @code{continue} $BJ8$O(B, $B%k!<%W$NK\BN$NJ8$NKvC<$K@)8f$r0\$9(B.
 $BNc$($P(B @code{for} $BJ8$G$O(B, $B:G8e$N<0JB$S$N<B9T$r9T$$(B, @code{while}  $BNc$($P(B @code{for} $BJ8$G$O(B, $B:G8e$N<0JB$S$N<B9T$r9T$$(B, @code{while}
Line 990  statement, and the termination condition will be evalu
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
   @subsection $B9=B$BNDj5A(B
   \E
   \BEG
   @node structure definition,,, Writing user defined functions
   @subsection structure definition
   \E
   
   \BJP
   $B9=B$BN$H$O(B, $B3F@.J,$NMWAG$,L>A0$G%"%/%;%9$G$-$k8GDjD9G[Ns$H;W$C$F$h$$(B.
   $B3F9=B$BN$OL>A0$G6hJL$5$l$k(B. $B9=B$BN$O(B, @code{struct} $BJ8$K$h$j@k8@$5$l$k(B.
   $B$"$k7?$N9=B$BN$O(B, $BAH$_9~$_4X?t(B @code{newstruct} $B$K$h$j@8@.$5$l$k(B.
   $B9=B$BN$N3F%a%s%P$O(B, $B1i;;;R(B @code{->} $B$K$h$j%"%/%;%9$9$k(B.
   $B%a%s%P$,9=B$BN$N>l9g(B, @code{->} $B$K$h$k;XDj$OF~$l;R$K$G$-$k(B.
   \E
   
   \BEG
   A structure data type is a fixed length array and each component of the array
   is accessed by its name. Each type of structure is distinguished by its name.
   A structure data type is declared by @code{struct} statement.
   A structure object is generated by a builtin function @code{newstruct}.
   Each member of a structure is accessed by an operatator @code{->}.
   If a member of a structure is again a structure, then the specification
   by @code{->} can be nested.
   \E
   
   @example
   [1] struct rat @{num,denom@};
   0
   [2] A = newstruct(rat);
   @{0,0@}
   [3] A->num = 1;
   1
   [4] A->den = 2;
   2
   [5] A;
   @{1,2@}
   @end example
   
   \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 1006  statement, and the termination condition will be evalu
Line 1048  statement, and the termination condition will be evalu
 @item  @item
 \JP $B2C8:>h=|(B, $BQQ(B  \JP $B2C8:>h=|(B, $BQQ(B
 \EG addition, subtraction, multiplication, division, exponentiation  \EG addition, subtraction, multiplication, division, exponentiation
   @*
 \BJP  \BJP
 $BQQ$O(B, @samp{^} $B$K$h$jI=$9(B. $B=|;;(B @samp{/} $B$O(B, $BBN$H$7$F$N1i;;$KMQ$$$k(B.  $BQQ$O(B, @samp{^} $B$K$h$jI=$9(B. $B=|;;(B @samp{/} $B$O(B, $BBN$H$7$F$N1i;;$KMQ$$$k(B.
 $BNc$($P(B, @code{2/3} $B$OM-M}?t$N(B @code{2/3} $B$rI=$9(B.  $BNc$($P(B, @code{2/3} $B$OM-M}?t$N(B @code{2/3} $B$rI=$9(B.
Line 1027  x+1  A^2*B*afo X/3 
Line 1069  x+1  A^2*B*afo X/3 
 @item  @item
 \JP $B%$%s%G%C%/%9$D$-$NJQ?t(B  \JP $B%$%s%G%C%/%9$D$-$NJQ?t(B
 \EG programming variables with indices  \EG programming variables with indices
   @*
 \BJP  \BJP
 $B%Y%/%H%k(B, $B9TNs(B, $B%j%9%H$NMWAG$O%$%s%G%C%/%9$rMQ$$$k$3$H$K$h$j<h$j=P$;$k(B.  $B%Y%/%H%k(B, $B9TNs(B, $B%j%9%H$NMWAG$O%$%s%G%C%/%9$rMQ$$$k$3$H$K$h$j<h$j=P$;$k(B.
 $B%$%s%G%C%/%9$O(B 0 $B$+$i;O$^$k$3$H$KCm0U$9$k(B. $B<h$j=P$7$?MWAG$,%Y%/%H%k(B,  $B%$%s%G%C%/%9$O(B 0 $B$+$i;O$^$k$3$H$KCm0U$9$k(B. $B<h$j=P$7$?MWAG$,%Y%/%H%k(B,
Line 1048  V[0] M[1][2]
Line 1090  V[0] M[1][2]
 @item  @item
 \JP $BHf3S1i;;(B  \JP $BHf3S1i;;(B
 \EG comparison operation  \EG comparison operation
   @*
 \BJP  \BJP
 $BEy$7$$(B (@samp{==}), $BEy$7$/$J$$(B (@samp{!=}), $BBg>.(B (@samp{>}, @samp{<},  $BEy$7$$(B (@samp{==}), $BEy$7$/$J$$(B (@samp{!=}), $BBg>.(B (@samp{>}, @samp{<},
 @samp{>=}, @samp{<=}) $B$N(B 2 $B9`1i;;$,$"$k(B. $B??$J$i$PM-M}?t$N(B 1, $B56$J$i$P(B  @samp{>=}, @samp{<=}) $B$N(B 2 $B9`1i;;$,$"$k(B. $B??$J$i$PM-M}?t$N(B 1, $B56$J$i$P(B
Line 1065  or 0 for the false.
Line 1107  or 0 for the false.
 @item  @item
 \JP $BO@M}<0(B  \JP $BO@M}<0(B
 \EG logical expression  \EG logical expression
   @*
 \BJP  \BJP
 $BO@M}@Q(B (@samp{&&}), $BO@M}OB(B (@samp{||}) $B$N(B 2 $B9`1i;;$H(B, $BH]Dj(B (@samp{!})  $BO@M}@Q(B (@samp{&&}), $BO@M}OB(B (@samp{||}) $B$N(B 2 $B9`1i;;$H(B, $BH]Dj(B (@samp{!})
 $B$,MQ0U$5$l$F$$$k(B. $BCM$O$d$O$j(B 1, 0 $B$G$"$k(B.  $B$,MQ0U$5$l$F$$$k(B. $BCM$O$d$O$j(B 1, 0 $B$G$"$k(B.
Line 1082  and 0 for the false.
Line 1124  and 0 for the false.
 @item  @item
 \JP $BBeF~(B  \JP $BBeF~(B
 \EG assignment  \EG assignment
   @*
 \BJP  \BJP
 $BDL>o$NBeF~$O(B @samp{=} $B$G9T$&(B. $B$3$N$[$+(B, $B;;=Q1i;;;R$HAH$_9g$o$;$F(B  $BDL>o$NBeF~$O(B @samp{=} $B$G9T$&(B. $B$3$N$[$+(B, $B;;=Q1i;;;R$HAH$_9g$o$;$F(B
 $BFC<l$JBeF~$r9T$&$3$H$b$G$-$k(B.  $BFC<l$JBeF~$r9T$&$3$H$b$G$-$k(B.
Line 1100  There are special assignments combined with arithmetic
Line 1142  There are special assignments combined with arithmetic
 @item  @item
 \JP $BH!?t8F$S=P$7(B  \JP $BH!?t8F$S=P$7(B
 \EG function call  \EG function call
   @*
 \JP $BH!?t8F$S=P$7$b<0$N0l<o$G$"$k(B.  \JP $BH!?t8F$S=P$7$b<0$N0l<o$G$"$k(B.
 \EG A function call is also an expression.  \EG A function call is also an expression.
 @item  @item
 @samp{++}, @samp{--}  @samp{++}, @samp{--}
   @*
 \JP $B$3$l$i$O(B, $BJQ?t$NA08e$K$D$$$F(B, $B$=$l$>$l<!$N$h$&$JA`:n(B, $BCM$rI=$9(B.  \JP $B$3$l$i$O(B, $BJQ?t$NA08e$K$D$$$F(B, $B$=$l$>$l<!$N$h$&$JA`:n(B, $BCM$rI=$9(B.
 \BEG  \BEG
 These operators are attached to or before a program variable,  These operators are attached to or before a program variable,
Line 1156  through @code{cpp}.  This enables @b{Asir} user to use
Line 1198  through @code{cpp}.  This enables @b{Asir} user to use
 @itemize @bullet  @itemize @bullet
 @item  @item
 @code{#include}  @code{#include}
   @*
 \BJP  \BJP
 @code{cpp} $B$KFC$K0z?t$rEO$5$J$$$?$a(B, $B%$%s%/%k!<%I%U%!%$%k$O(B,  @code{cpp} $B$KFC$K0z?t$rEO$5$J$$$?$a(B, $B%$%s%/%k!<%I%U%!%$%k$O(B,
 @code{#include} $B$,=q$+$l$F$$$k%U%!%$%k$HF1$8%G%#%l%/%H%j$G%5!<%A$5$l$k(B.  @code{#include} $B$,=q$+$l$F$$$k%U%!%$%k$HF1$8%G%#%l%/%H%j$G%5!<%A$5$l$k(B.
Line 1168  containing @code{#include} so that no arguments are pa
Line 1210  containing @code{#include} so that no arguments are pa
   
 @item  @item
 @code{#define}  @code{#define}
   @*
 \JP $B$3$l$O(B, C $B$K$*$1$k$N$HA4$/F1MM$KMQ$$$k$3$H$,$G$-$k(B.  \JP $B$3$l$O(B, C $B$K$*$1$k$N$HA4$/F1MM$KMQ$$$k$3$H$,$G$-$k(B.
 \EG This can be used just as in C language.  \EG This can be used just as in C language.
   
 @item  @item
 @code{#if}  @code{#if}
   @*
 \BJP  \BJP
 @code{/*}, @code{*/} $B$K$h$k%3%a%s%H$OF~$l;R$K$G$-$J$$$N$G(B, $B%W%m%0%i%`(B  @code{/*}, @code{*/} $B$K$h$k%3%a%s%H$OF~$l;R$K$G$-$J$$$N$G(B, $B%W%m%0%i%`(B
 $B$NBg$-$JItJ,$r%3%a%s%H%"%&%H$9$k:]$K(B, @code{#if 0}, @code{#endif}  $B$NBg$-$JItJ,$r%3%a%s%H%"%&%H$9$k:]$K(B, @code{#if 0}, @code{#endif}
Legend:
Removed from v.1.3  
changed lines
  Added in v.1.6
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