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Editing: os_defines.h
// Specific definitions for GNU/Linux -*- C++ -*- // Copyright (C) 2000-2018 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the // terms of the GNU General Public License as published by the // Free Software Foundation; either version 3, or (at your option) // any later version. // This library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // Under Section 7 of GPL version 3, you are granted additional // permissions described in the GCC Runtime Library Exception, version // 3.1, as published by the Free Software Foundation. // You should have received a copy of the GNU General Public License and // a copy of the GCC Runtime Library Exception along with this program; // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see // <http://www.gnu.org/licenses/>. /** @file bits/os_defines.h * This is an internal header file, included by other library headers. * Do not attempt to use it directly. @headername{iosfwd} */ #ifndef _GLIBCXX_OS_DEFINES #define _GLIBCXX_OS_DEFINES 1 // System-specific #define, typedefs, corrections, etc, go here. This // file will come before all others. // This keeps isanum, et al from being propagated as macros. #define __NO_CTYPE 1 #include <features.h> // Provide a declaration for the possibly deprecated gets function, as // glibc 2.15 and later does not declare gets for ISO C11 when // __GNU_SOURCE is defined. #if __GLIBC_PREREQ(2,15) && defined(_GNU_SOURCE) # undef _GLIBCXX_HAVE_GETS #endif // Glibc 2.23 removed the obsolete isinf and isnan declarations. Check the // version dynamically in case it has changed since libstdc++ was configured. #define _GLIBCXX_NO_OBSOLETE_ISINF_ISNAN_DYNAMIC __GLIBC_PREREQ(2,23) #endif
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