内联vs内联vs内联vs内联?-inlinevs__inlinevs__inline__vs__forceinline?

75  

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

inline是关键字，在c++和C99中。

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

__inline是C中的一个特定于供应商的关键字(例如MSVC)，因为C89没有内联函数。

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

__inline__类似于__inline，但来自另一组编译器。

__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).

__forceinline是另一个特定于供应商(主要是MSVC)的关键字，它将对内联函数施加比__inline暗示更大的压力(例如，即使内联导致更糟糕的代码)。

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

在GCC和clang中也有__attribute__((always_inline))。

18  

__inline, __inline__ and __forceinline are all implementation specific. Because of the double underscore they are all identifiers reserved for the implementation so shouldn't conflict with identifiers used in applications.

__inline、__inline__和__forceinline都是特定于实现的。由于双下划线，它们都是为实现保留的标识符，因此不应与应用程序中使用的标识符冲突。

inline is the only C++ keyword.

内联是唯一的c++关键字。

8  

For the Visual Studio compiler it means:

对于Visual Studio编译器，它的意思是:

• inline - suggestion to the compiler to inline your code

  内联—建议编译器内联您的代码

• __forceinline - overrides the builtin compiler optimization and generates inline code

  __forceinline -重写构建编译器优化并生成内联代码

For more details see: http://msdn.microsoft.com/en-us/library/z8y1yy88%28VS.71%29.aspx

详情请参阅:http://msdn.microsoft.com/en- us/library/z8y1y1y88%28vs.71%29.aspx