inline vs __inline vs __inline__ vs __forceinline？ [英] inline vs __inline vs __inline__ vs __forceinline?

问题描述

这四个内嵌（关键）字之间有什么区别？

inline ， __ inline ， __ inline __ ， __ forceinline 。

<在C ++和C99中

__ inline 是供应商特定的关键字（例如

__inline __ 类似于 __ inline ，但是来自另一组编译器。

__ forceinline 是另一个特定于供应商的（主要是MSVC）关键字，它会对 __ inline hint

在GCC中还有 __ attribute __（（always_inline））铛。

What are the differences between these four inline (key)words?

inline, __inline, __inline__, __forceinline.

解决方案

inline is the keyword, in C++ and C99.

__inline is a vendor-specific keyword (e.g. MSVC) for inline function in C, since C89 doesn't have it.

__inline__ is similar to __inline but is from another set of compilers.

__forceinline is another vendor-specific (mainly MSVC) keyword, which will apply more force to inline the function than the __inline hint (e.g. inline even if it result in worse code).

There's also __attribute__((always_inline)) in GCC and clang.

这篇关于inline vs __inline vs __inline__ vs __forceinline？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！