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G++ predefined macros

WebSeveral object-like macros are predefined; you use them withoutsupplying their definitions. They fall into three classes: standard,common, and system-specific. In C++, there is a fourth category, the named operators. They act likepredefined macros, but you cannot … 3 Macros. A macro is a fragment of code which has been given a name. … Variadic Macros (The C Preprocessor) Next: Predefined Macros, Previous: … WebMar 1, 2024 · GCCで標準で定義されているマクロ (predefined macros)を確認する方法のメモ TL;DR 以下で確認できます。 （g++でも同様です） $ gcc -dM -E - < /dev/null 実行例 ・Ubuntu 14.04 の GCC 4.8.4 で検証 GCCの標準定義コンパイルオプションのダンプ

Using Predefined Compiler Macros in C and C++

WebNov 7, 2024 · to list clang’s pre-defined macros: clang -x c /dev/null -dM -E; to list gcc’s pre-defined macros: gcc -x c /dev/null -dM -E (not that on mac gcc is actually clang that … WebThis allows, for instance, two different headers to define a common macro. The preprocessor will only complain if the definitions do not match. Directives Within Macro … train buffalo to boston https://caalmaria.com

[GCC][C/C++][Linux] GCCの定義済みマクロ(predefined macros) …

WebSep 18, 2010 · g++ -E -dM file.cpp should do the job. -dM, as GNU Preprocessor manual puts it, should generate a list of ‘#define’ directives for all the macros defined during the execution of the preprocessor, including predefined macros. Share Improve this answer Follow answered Oct 2, 2013 at 11:26 Alexander Lukichev 121 1 4 Add a comment 5 WebOct 5, 2008 · g++ will compile: *.c\*.cpp files but they will all be treated as C++ files. Also if you use g++ to link the object files it automatically links in the std C++ libraries ( gcc does not do this). gcc compiling C files has fewer predefined macros. gcc compiling *.cpp and g++ compiling *.c\*.cpp files has a few extra macros. WebSep 27, 2008 · Microsoft C/C++ compiler (MSVC) Predefined Macros can be found here. I think you are looking for: _WIN32 - Defined as 1 when the compilation target is 32-bit … train buffalo to florida

gcc / g++ how to dump all preprocessor definitions

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G++ predefined macros

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WebDec 12, 2013 · The macro __PRETTY_FUNCTION__ reports a class name in static functions as well as method calls. However, this will only work with gcc. Here's an … WebDo not predefine any system-specific or GCC-specific macros. standard predefined macros remain defined. -pthread Define additional macros required for using the POSIX threads library. You should use this option consistently for both compilation and linking. and also on x86 Cygwin and MinGW targets. -M

G++ predefined macros

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WebApr 7, 2013 · I have googled for a list of predefined macros per architecture used by gcc without success. Is there such a list or do I need to -dM for crosscompilers. gcc cross-compiling predefined-macro Share Improve this question Follow asked Apr 7, 2013 at 9:22 user877329 6,540 8 42 84 1 @BrettHale . This is an answer – user877329 Apr 7, 2013 … WebSep 24, 2008 · The standard has the following predefined macros [16.8]: __LINE__ __FILE__ __DATE__ __TIME__ __STDC__ __cplusplus__ Everything else is implementation specific. Not entirely. A certain number of standard headers are also guaranteed to define specific macros. In addition, C99 adds some important macros …

WebJul 19, 2014 · 1 Answer. Sorted by: 5. To dump all defines you can run: gcc -dM -E file.c. Check GCC dump preprocessor defines. All defines that it will dump will be the value defined (or last redefined), you won't be able to dump the define value in … Web#ifdef GCC #define GetFunctionName () string ("My function name is ") + __PRETTY_FUNCTION__; #endif Since I want to use __PRETTY_FUNCTION__, this is …

WebJun 3, 2016 · The C++ part requeries C++11 or later. Try with -std=c++03 and GCC and you'll see: error: #error This file requires compiler and library support for the ISO C++ 2011 standard. This support must be enabled with the -std=c++11 or -std=gnu++11 compiler options. – Sebastian Apr 20, 2024 at 18:44 WebApr 13, 2024 · 预定义宏（Predefined Macros）是在C和C++编译器中预先定义好的一些宏，可以在源代码中直接使用，用于获取一些与编译环境、操作系统、编译器版本等相关的信息。这些预定义宏在编译期间会被编译器替换成对应的值，从而在编译时获取到一些编译环境的 …

WebDec 12, 2013 · 16 Answers Sorted by: 89 The problem with using typeid (*this).name () is that there is no this pointer in a static method call. The macro __PRETTY_FUNCTION__ reports a class name in static functions as well as method calls. However, this will only work with gcc. Here's an example of extracting the information through a macro style interface.

WebJul 25, 2016 · You can see the list of all macros gcc/g++ defines for any combination of flags like that: $ g++ -E -dD -xc++ /dev/null For example: [max@truth ~]$ g++ -E -dD -xc++ /dev/null > a [max@truth ~]$ g++ -E -dD -xc++ -g -O3 /dev/null > b [max@truth ~]$ diff a b 1a2 > # 1 "/home/max//" 173c174 < #define __NO_INLINE__ 1 --- > #define … train buffalo to torontoWebThis site uses cookies to store information on your computer. By continuing to use our site, you consent to our cookies. If you are not happy with the use of these cookies, please review our Cookie Policy to learn how they can be disabled. By disabling cookies, some features of the site will not work the seabrookWebAug 12, 2024 · C++ Provides some useful predefined macros for debugging, logging, compiler identification and detecting the version of C++ standard the compiler is using. … the seabridge pub