// Specific definitions for generic platforms -*- C++ -*- // Copyright (C) 2000-2021 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 // . /** @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 // System-specific #define, typedefs, corrections, etc, go here. This // file will come before all others. // Define as 0, if you want, to enable inlining of gthread functions. // By default, don't pollute libstdc++ with win32api names. #if !defined (__GTHREAD_HIDE_WIN32API) # define __GTHREAD_HIDE_WIN32API 1 #endif // Don't let win32api windef.h define min and max as macros // if included after c++config.h. #undef NOMINMAX #define NOMINMAX 1 // Make sure that POSIX printf/scanf functions are activated. As // libstdc++ depends on POSIX-definitions of those functions, we define // it unconditionally. #undef __USE_MINGW_ANSI_STDIO #define __USE_MINGW_ANSI_STDIO 1 #if defined (_GLIBCXX_DLL) #define _GLIBCXX_PSEUDO_VISIBILITY_default __attribute__ ((__dllimport__)) #else #define _GLIBCXX_PSEUDO_VISIBILITY_default #endif #define _GLIBCXX_PSEUDO_VISIBILITY_hidden #define _GLIBCXX_PSEUDO_VISIBILITY(V) _GLIBCXX_PSEUDO_VISIBILITY_ ## V // See libstdc++/20806. #define _GLIBCXX_HAVE_DOS_BASED_FILESYSTEM 1 // See libstdc++/43738 // On native windows targets there is no ioctl function. And the existing // ioctlsocket function doesn't work for normal file-descriptors. #define _GLIBCXX_NO_IOCTL 1 // See libstdc++/51135 // Class constructors/destructors have __thiscall calling-convention on // IA 32-bit #if defined (__i386__) #define _GLIBCXX_CDTOR_CALLABI __thiscall #endif #ifdef __x86_64__ #define _GLIBCXX_LLP64 1 // See libstdc++/69506 #define _GLIBCXX_USE_WEAK_REF 0 #endif // Enable use of GetModuleHandleEx (requires Windows XP/2003) in // __cxa_thread_atexit to prevent modules from being unloaded before // their dtors are called #define _GLIBCXX_THREAD_ATEXIT_WIN32 1 // See libstdc++/59807 #define _GTHREAD_USE_MUTEX_INIT_FUNC 1 #define _GLIBCXX_USE_CRT_RAND_S 1 // See libstdc++/94268 #define _GLIBCXX_BUFSIZ 4096 #endif