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ruby--ruby/include/ruby/subst.h

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add #include guard hack According to MSVC manual (*1), cl.exe can skip including a header file when that: - contains #pragma once, or - starts with #ifndef, or - starts with #if ! defined. GCC has a similar trick (*2), but it acts more stricter (e. g. there must be _no tokens_ outside of #ifndef...#endif). Sun C lacked #pragma once for a looong time. Oracle Developer Studio 12.5 finally implemented it, but we cannot assume such recent version. This changeset modifies header files so that each of them include strictly one #ifndef...#endif. I believe this is the most portable way to trigger compiler optimizations. [Bug #16770] *1: https://docs.microsoft.com/en-us/cpp/preprocessor/once *2: https://gcc.gnu.org/onlinedocs/cppinternals/Guard-Macros.html
2020-04-10 01:11:40 -04:00
#ifndef RUBY_SUBST_H /*-*-C++-*-vi:se ft=cpp:*/
* include/ruby/subst.h: new file for substitute standard functions.. * include/ruby/missing.h: don't substitute "close", etc. here. * include/ruby/ruby.h: include ruby/subst.h at last. This prevents substituting "close" in unitstd.h. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@28907 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2010-08-07 11:44:27 -04:00
#define RUBY_SUBST_H 1
add #include guard hack According to MSVC manual (*1), cl.exe can skip including a header file when that: - contains #pragma once, or - starts with #ifndef, or - starts with #if ! defined. GCC has a similar trick (*2), but it acts more stricter (e. g. there must be _no tokens_ outside of #ifndef...#endif). Sun C lacked #pragma once for a looong time. Oracle Developer Studio 12.5 finally implemented it, but we cannot assume such recent version. This changeset modifies header files so that each of them include strictly one #ifndef...#endif. I believe this is the most portable way to trigger compiler optimizations. [Bug #16770] *1: https://docs.microsoft.com/en-us/cpp/preprocessor/once *2: https://gcc.gnu.org/onlinedocs/cppinternals/Guard-Macros.html
2020-04-10 01:11:40 -04:00
/**
* @author Ruby developers <ruby-core@ruby-lang.org>
* @copyright This file is a part of the programming language Ruby.
* Permission is hereby granted, to either redistribute and/or
* modify this file, provided that the conditions mentioned in the
* file COPYING are met. Consult the file for details.
*/
* include/ruby/subst.h: new file for substitute standard functions.. * include/ruby/missing.h: don't substitute "close", etc. here. * include/ruby/ruby.h: include ruby/subst.h at last. This prevents substituting "close" in unitstd.h. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@28907 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2010-08-07 11:44:27 -04:00
* include/ruby/subst.h (snprintf): redefinition moved from ruby.h. (vsnprintf): ditto. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@28909 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2010-08-07 18:19:17 -04:00
#undef snprintf
#undef vsnprintf
#define snprintf ruby_snprintf
#define vsnprintf ruby_vsnprintf
* include/ruby/subst.h: new file for substitute standard functions.. * include/ruby/missing.h: don't substitute "close", etc. here. * include/ruby/ruby.h: include ruby/subst.h at last. This prevents substituting "close" in unitstd.h. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@28907 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2010-08-07 11:44:27 -04:00
#ifdef BROKEN_CLOSE
#undef getpeername
#define getpeername ruby_getpeername
#undef getsockname
#define getsockname ruby_getsockname
#undef shutdown
#define shutdown ruby_shutdown
#undef close
#define close ruby_close
#endif
#endif
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