c++ global variable
// a.cpp
int x = 5;
// b.cpp
extern int x; // allows b.cpp to access 'x' from a.cppc++ global variable
// a.cpp
int x = 5;
// b.cpp
extern int x; // allows b.cpp to access 'x' from a.cppc++ variable globale
#include <iostream>
int global = 3; // Une variable globale
void ChangeGlobal()
{
global = 5; // Référence à la variable globale à l'intérieur d'une fonction
}
int main()
{
std::cout << global << '\n'; // Référence à la variable globale dans une autre fonction
ChangeGlobal();
std::cout << global << '\n';
return 0;
}Copyright © 2021 Codeinu
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