在C和C静态变量++ [英] Static variables in C and C++

问题描述

是否有声明为变静态 C和C ++之间的任何函数外任何区别。我读静态表示文件的范围和变量将不会是文件外部访问。我也看到，在C，全局变量静态。这是否意味着，在C全局变量不能在另一个文件被访问？

Is there any difference between a variable declared as static outside any function between C and C++. I read that static means file scope and the variables will not be accessible outside the file. I also read that in C, global variables are static . So does that mean that global variables in C can not be accessed in another file?

推荐答案

没有，但在这方面的C和C ++之间没有差异。

No, there's no difference between C and C++ in this respect.

读<一个href=\"http://stackoverflow.com/questions/572547/what-does-static-mean-in-a-c-program/572550#572550\">this SO回答什么静态在C程序的手段。在C ++中有与使用静态的类变量（而不是实例变量）。

Read this SO answer about what static means in a C program. In C++ there are a couple of other meanings related to the use of static for class variables (instead of instance variables).

对于全局变量是静态 - 仅从内存分配的（他们被分配在数据段，因为所有的全局变量）的地步。但从知名度的一点：

Regarding global vars being static - only from the point of view of memory allocation (they are allocated on the data segment, as all globals are). From the point of view of visibility:

static int var;    // can't be seen from outside files
int var;           // can be seen from outside files (no 'static')

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