Regarding static objects in inline functions existing in multiple dynamic libraries？

Question

If this code exists in multiple dynamic libraries, can it be guaranteed that the program only has one instance of instance?

//code.h
inline double& fun(){
static double instance = 1.0;
return instance;
}

cppreference Function-local static objects in all definitions of the same inline function (which may be implicitly inline) all refer to the same object defined in one translation unit, as long as the function has external linkage.Is dynamic library linking guaranteed by isocpp?

Answer 1

您好， @海尧 李 •

不行。
根据文档：Dynamic-Link Library Data
每个进程都有自己的 DLL 全局变量和静态变量实例。

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