2014年08鐃緒申27鐃緒申
C/C++鐃竣ワ申廛鐃緒申鐃緒申奪鐃緒申竜鐃銃逸申琉磴わ申鐃�/ ## /鐃峻￥申
鐃殉ニワ申鐃獣ワ申鐃淑ネワ申鐃緒申続鐃緒申鐃銃随申鐃緒申鐃緒申鐃緒申鐃緒申泙鐃緒申鵝�まわ申鐃竣ワ申廛鐃緒申鐃緒申奪鐃緒申鐃緒申辰任鐃緒申鐃�
鐃緒申鐃緒申C/C++鐃竣ワ申廛鐃緒申鐃緒申奪鐃緒申竜鐃銃逸申琉磴わ申鐃�defined鐃峻￥申
鐃緒申鐃緒申鐃緒申鐃緒申Facebook鐃述わ申C/C++鐃竣ワ申廛鐃緒申鐃緒申奪鐃�Warp鐃緒申Windows鐃縦駈申鐃叔ビワ申鐃�
Warp 鐃塾居申動鐃緒申調鐃駿てわ申鐃銃￥申鐃淑駕申鐃塾よう鐃淑￥申鐃殉ワ申鐃緒申展鐃緒申鐃緒申縫鐃緒申鐃緒申箸鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申茲�鐃淑ワ申鐃緒申鐃宿わ申鐃縮わ申覆鐃緒申鐃緒申傍鐃緒申鐃緒申佞鐃緒申泙鐃緒申鐃緒申鐃�
(鐃緒申鐃緒申 MinGW GCC 鐃緒申 x86_64-gdcproject-mingw32/x86_64-gdcproject-mingw32/sysroot/mingw/include/wtypes.h 鐃舜ッワ申)
鐃緒申鐃緒申C/C++鐃竣ワ申廛鐃緒申鐃緒申奪鐃緒申竜鐃銃逸申琉磴わ申鐃�defined鐃峻￥申
鐃緒申鐃緒申鐃緒申鐃緒申Facebook鐃述わ申C/C++鐃竣ワ申廛鐃緒申鐃緒申奪鐃�Warp鐃緒申Windows鐃縦駈申鐃叔ビワ申鐃�
Warp 鐃塾居申動鐃緒申調鐃駿てわ申鐃銃￥申鐃淑駕申鐃塾よう鐃淑￥申鐃殉ワ申鐃緒申展鐃緒申鐃緒申縫鐃緒申鐃緒申箸鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申茲�鐃淑ワ申鐃緒申鐃宿わ申鐃縮わ申覆鐃緒申鐃緒申傍鐃緒申鐃緒申佞鐃緒申泙鐃緒申鐃緒申鐃�
(鐃緒申鐃緒申 MinGW GCC 鐃緒申 x86_64-gdcproject-mingw32/x86_64-gdcproject-mingw32/sysroot/mingw/include/wtypes.h 鐃舜ッワ申)
$ cat gen_cpp_comment.c #define _VARIANT_BOOL /##/ $ ./warp.exe --stdout gen_cpp_comment.c # 1 "gen_cpp_comment.c" # 1 "i:\test\warp//" # 1 "<command-line>" # 1 "gen_cpp_comment.c" gen_cpp_comment.c(2) : ## cannot appear at end of macro text
鐃渋はわ申鐃曙自鐃塾わ申 Warp 鐃塾バワ申鐃緒申鐃淑のでわ申鐃緒申鐃緒申GNU cpp (GCC) 鐃緒申 VC++ 鐃塾間でわ申鐃銃逸申鐃緒申磴わ申泙鐃緒申鐃緒申鐃�
鐃緒申 skipWhitespace() 鐃夙わ申鐃緒申鐃銃ワ申廛譟種申抜愎鐃緒申鐃緒申鐃叔￥申'*' 鐃緒申 '/' 鐃緒申 1 文鐃緒申鐃塾常申鐃祝種申蠅鰹申椶鐃緒申討鐃緒申泙辰討鐃緒申鐃処う鐃叔わ申鐃緒申鐃淑わ申鐃塾わ申鐃潤、鐃叔醐申鐃� '/' 鐃緒申鐃緒申鐃緒申鐃獣プわ申鐃緒申屮泪鐃緒申鐃淑醐申鐃緒申鐃塾最醐申鐃� ## 鐃熟誌申鐃術でわ申鐃淑わ申鐃竣とワ申鐃初ー鐃祝なってわ申鐃殉わ申鐃緒申鐃祝どわ申鐃緒申鐃� Warp 鐃緒申 D 鐃緒申鐃緒申鐃� InputRange 鐃夙わ申鐃緒申鐃緒申鐃重�鐃淑刻申造鐃塾テワ申廛譟種申箸鐃緒申鐃緒申里鐃緒申鐃緒申劼鐃緒申鐃銃わ申鐃緒申里如鐃緒申鐃緒申魯鐃緒申肇蝓種申鐃緒申 1 文鐃緒申鐃緒申鐃宿みわ申鐃緒申鐃緒申鐃�InputRange 鐃祝駕申能鐃緒申鐃緒申鐃緒申 empty/front/popFront() 鐃塾み）なわ申鐃潤、鐃夙ワ申奪鐃緒申鐃緒申淵鐃緒申鐃緒申匹砲覆辰討鐃緒申鐃塾わ申鐃緒申鐃緒申丱鐃緒申慮鐃緒申鐃緒申忙廚鐃緒申泙鐃緒申鐃�
GCC 4.9.0 鐃叔は￥申鐃緒申鐃緒申鐃緒申里鐃緒申未鐃殉わ申鐃緒申鐃淑わ申鐃塾わ申鐃緒申 wtype.h 鐃舜ッワ申鐃緒申鐃緒申鐃緒申無鐃緒申鐃緒申鐃術でわ申鐃緒申法鐃緒申尊櫃房鐃緒申婿劼鐃緒申鐃術わ申鐃緒申肇鐃緒申蕁種申砲覆鐃殉わ申鐃緒申
N1256鐃緒申C99 final draft鐃祝わ申 6.4.9 Comments 鐃祝は￥申鐃緒申鐃緒申呂鐃緒申鐃獣とわか鐃緒申覆鐃緒申辰鐃緒申里任鐃緒申鐃緒申鐃�
http://www.open-std.org/jtc1/sc22/WG14/www/docs/n1256.pdf
鐃盾し鐃旬わ申鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申鐃殉わ申鐃緒申鐃初、鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申亶鐃緒申鐃緒申任鐃緒申鐃�
鐃緒申連鐃緒申鐃緒申鐃緒申鐃緒申 URL: stackoverflow: Does the C preprocessor strip comments or expand macros first?
鐃緒申 skipWhitespace() 鐃夙わ申鐃緒申鐃銃ワ申廛譟種申抜愎鐃緒申鐃緒申鐃叔￥申'*' 鐃緒申 '/' 鐃緒申 1 文鐃緒申鐃塾常申鐃祝種申蠅鰹申椶鐃緒申討鐃緒申泙辰討鐃緒申鐃処う鐃叔わ申鐃緒申鐃淑わ申鐃塾わ申鐃潤、鐃叔醐申鐃� '/' 鐃緒申鐃緒申鐃緒申鐃獣プわ申鐃緒申屮泪鐃緒申鐃淑醐申鐃緒申鐃塾最醐申鐃� ## 鐃熟誌申鐃術でわ申鐃淑わ申鐃竣とワ申鐃初ー鐃祝なってわ申鐃殉わ申鐃緒申鐃祝どわ申鐃緒申鐃� Warp 鐃緒申 D 鐃緒申鐃緒申鐃� InputRange 鐃夙わ申鐃緒申鐃緒申鐃重�鐃淑刻申造鐃塾テワ申廛譟種申箸鐃緒申鐃緒申里鐃緒申鐃緒申劼鐃緒申鐃銃わ申鐃緒申里如鐃緒申鐃緒申魯鐃緒申肇蝓種申鐃緒申 1 文鐃緒申鐃緒申鐃宿みわ申鐃緒申鐃緒申鐃�InputRange 鐃祝駕申能鐃緒申鐃緒申鐃緒申 empty/front/popFront() 鐃塾み）なわ申鐃潤、鐃夙ワ申奪鐃緒申鐃緒申淵鐃緒申鐃緒申匹砲覆辰討鐃緒申鐃塾わ申鐃緒申鐃緒申丱鐃緒申慮鐃緒申鐃緒申忙廚鐃緒申泙鐃緒申鐃�
GCC 4.9.0 鐃叔は￥申鐃緒申鐃緒申鐃緒申里鐃緒申未鐃殉わ申鐃緒申鐃淑わ申鐃塾わ申鐃緒申 wtype.h 鐃舜ッワ申鐃緒申鐃緒申鐃緒申無鐃緒申鐃緒申鐃術でわ申鐃緒申法鐃緒申尊櫃房鐃緒申婿劼鐃緒申鐃術わ申鐃緒申肇鐃緒申蕁種申砲覆鐃殉わ申鐃緒申
$ cat gen_cpp_comment.c #define _VARIANT_BOOL /##/ _VARIANT_BOOL $ gcc -E gen_cpp_comment.c # 1 "gen_cpp_comment.c" # 1 "VC++ 鐃叔わ申鐃縮わ申泙鐃緒申鐃�" # 1 " " # 1 "gen_cpp_comment.c" gen_cpp_comment.c:1:23: error: pasting "/" and "/" does not give a valid preprocessing token #define _VARIANT_BOOL /##/ ^ gen_cpp_comment.c:3:1: note: in expansion of macro '_VARIANT_BOOL' _VARIANT_BOOL ^ / /
>cl /E gen_cpp_comment.c Microsoft(R) 32-bit C/C++ Optimizing Compiler Version 15.00.30729.01 for 80x86 Copyright (C) Microsoft Corporation. All rights reserved. gen_cpp_comment.c #line 1 "gen_cpp_comment.c"鐃緒申鐃緒申鐃緒申砲鐃緒申鐃緒申鬚韻鐃駿わ申鐃緒申鐃緒申鐃緒申鐃緒申鐃淑のでわ申鐃緒申鐃緒申鐃緒申鐃塾よう鐃淑ワ申鐃緒申鐃夙わ申鐃緒申鐃緒申鐃緒申 valid 鐃淑のわ申鐃宿わ申鐃緒申鐃熟￥申鐃緒申鐃緒申辰鐃緒申鐃緒申里砲呂錣�鐃緒申泙鐃緒申鐃叔わ申鐃緒申鐃緒申
N1256鐃緒申C99 final draft鐃祝わ申 6.4.9 Comments 鐃祝は￥申鐃緒申鐃緒申呂鐃緒申鐃獣とわか鐃緒申覆鐃緒申辰鐃緒申里任鐃緒申鐃緒申鐃�
http://www.open-std.org/jtc1/sc22/WG14/www/docs/n1256.pdf
#define glue(x,y) x##y鐃夙わ申鐃緒申鐃潤い鐃純が鐃緒申鐃所、鐃殉わ申鐃緒申6.10.3.3 The ## operator 鐃緒申
glue(/,/) k(); // syntax error, not comment
If the result is not a valid preprocessing token, the behavior is undefined.鐃夙わ申鐃緒申泙鐃緒申鐃緒申鐃�// 鐃緒申鐃竣ワ申廛鐃緒申鐃緒申奪鐃緒申離函鐃緒申鐃緒申鐃夙わ申鐃緒申 valid 鐃淑のわ申鐃宿わ申鐃緒申鐃緒申鐃処く鐃緒か鐃緒申泙鐃緒申鐃叔わ申鐃緒申鐃緒申
鐃盾し鐃旬わ申鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申鐃殉わ申鐃緒申鐃初、鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申鐃緒申亶鐃緒申鐃緒申任鐃緒申鐃�
鐃緒申連鐃緒申鐃緒申鐃緒申鐃緒申 URL: stackoverflow: Does the C preprocessor strip comments or expand macros first?
