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ruby--ruby/ruby_assert.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_TOPLEVEL_ASSERT_H /*-*-C-*-vi:se ft=c:*/
#define RUBY_TOPLEVEL_ASSERT_H
/**
* @file
* @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.
*/
Split RUBY_ASSERT and so on under include/ruby
2019-07-14 00:05:16 -04:00
#include "ruby/assert.h"
RUBY_ASSERT * error.c (rb_assert_failure): assertion with stack dump. * ruby_assert.h (RUBY_ASSERT): new header for the assertion. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53615 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-01-22 03:33:55 -05:00
string literal longer than 509 characters is a C99ism Should avoid such thing. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61546 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-01-02 01:41:43 -05:00
#if !defined(__STDC_VERSION__) || (__STDC_VERSION__ < 199901L)
/* C89 compilers are required to support strings of only 509 chars. */
/* can't use RUBY_ASSERT for such compilers. */
#include <assert.h>
#else
RUBY_ASSERT * error.c (rb_assert_failure): assertion with stack dump. * ruby_assert.h (RUBY_ASSERT): new header for the assertion. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53615 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-01-22 03:33:55 -05:00
#undef assert
#define assert RUBY_ASSERT
string literal longer than 509 characters is a C99ism Should avoid such thing. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61546 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-01-02 01:41:43 -05:00
#endif
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
#endif /* RUBY_TOPLEVEL_ASSERT_H */
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