检测CPU架构编译时 [英] Detecting CPU architecture compile-time

问题描述

在编译C或C ++代码时，找出CPU体系结构的最可靠方法是什么？据我所知，不同的编译器有自己的一套非标准预处理器定义（ _M_X86 in MSVS， __ i386 __ ， __ arm __ 在GCC等）。

What is the most reliable way to find out CPU architecture when compiling C or C++ code? As far as I can tell, different compilers have their own set of non-standard preprocessor definitions (_M_X86 in MSVS, __i386__, __arm__ in GCC, etc).

是否有标准检测我正在建设的架构？如果没有，是否有一个来源为各种编译器的这样的定义的完整列表，如标题所有样板 #ifdef s？

Is there a standard way to detect the architecture I'm building for? If not, is there a source for a comprehensive list of such definitions for various compilers, such as a header with all the boilerplate #ifdefs?

推荐答案

以下是有关预定义的架构宏和其他类型的预定义宏。

Here is some information about Pre-defined Architecture Macros and other types of pre-defined macros.

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