问题描述
如何将变量存储在类中,然后在程序流程中对其进行修改?
例如:
bool bGlobalStatus = false;
class foo
{
public:
foo(){}
~foo(){}
void InitGlobalBool(bool &var)
{
// I can change the value here,but I want to store the variable and modify it later.
// var = !var;
}
void Update()
{
// this will be called in program flow ...
var = !var; // this variable should be in my case bGlobalStatus,depends which variable I put inside the InitGlobalBool function
}
};
int main()
{
foo Foo;
Foo.InitGlobalBool(bGlobalStatus);
return 0;
}
解决方法
我认为您想做这样的事情:
bool bGlobalStatus = false;
class foo
{
public:
bool *mVar{};
foo(){}
~foo(){}
void InitGlobalBool(bool &var)
{
mVar = &var;
}
void Update()
{
*mVar = !(*mVar);
}
};
int main()
{
foo Foo;
Foo.InitGlobalBool(bGlobalStatus);
return 0;
}