准确来说,它这个inline是一个C++关键字,在函数声明或定义中,函数返回类型前加上关键字inline,即可以把函数指定为内联函数。但是由于市面上的大部分C编译器都可以兼容部分C++的关键字和语法,所以我们也经常见到inline出现在C代码中。 3.2 inline与宏定义有什么区别? 宏定义发生在预编译处理阶段,它仅仅是做字符串的...
此外,在标准 C 中,函数始终是外部的,但某些编译器扩展允许在函数内定义函数。 File 1: // Explicit definition, this actually allocates// as well as describingintGlobal_Variable;// Function prototype (declaration), assumes// defined elsewhere, normally from include file.voidSomeFunction(void);intmain(...
The static keyword on the function forces the inline function to have an internal linkage(inline functions have external linkage) Each instance of such a function is treated as a separate function(address of each function is different) and each instance of these functions have their own copies of...
The C99 keyword inline hints to the compiler that invocations of a function qualified with inline are to be expanded inline. For example:c inline int max(int a, int b) { return (a > b) ? a : b; }The compiler inlines a function qualified with inline only if it is reasonable to do...
static, const, inline, virtual function 辨析 static 是c++中很常用的修饰符,它被用来控制变量的存储方式和可见性,下面我将从 static 修饰符的产生原因、作用谈起,全面分析static 修饰符的实质。 static 的两大作用: 一、控制存储方式: static被引入以告知编译器,将变量存储在程序的静态存储区而非栈上空间。
C 语法中static 和inline联合使用 最近在学习阶段,翻阅代码。发现有一个用法比较让我奇怪,就上网查了一下 1 staticinlinevoidsomefunction(void); 这里是举例说明,这行代码是放在.h文件中的。 在此之前,如果对inline概念不了解的请自行wiki http://zh.wikipedia.org/wiki/%E5%86%85%E8%81%94%E5%87%BD%E6%...
"static inline" means "we have to have this function, if you use it, but don't inline it, then make a static version of it in this compilation unit". "extern inline" means "I actually _have_ an extern for this function, but if you want to inline it, here's the inline-version"...
linus说过 "static inline" means "we have to have this function, if you use it, but don't inline it, then make a static version of it in this compilation unit". "extern inline" means "I actuallyhavean extern for this function, but if you want to inline it, here's the inline-...
•inline has nothing to do with the inlining optimization.•inline tells the compiler that multiple definitions of this function may appear, and the linker should treat them as the same function, with the same address.•Forgetting inline on a function that is defined in-line may cause dupl...
static inline int fun () { return 2; } And to ensure that fun is always defined foo.h contains the following: static inline int fun () { return 3; } Does the following elicit undefined behavior when bar.h contains the definition? #include "foo.h" /* ensure there is always a de...