Let's say I have a class as below:
class Test {
public:
Test() : mt((std::random_device())()), dist1(0, 10), dist2(0, 100) {}
void func() {
if (dist1(mt) < 4) {
// do something
}
}
void func2() {
if (dist2(mt) > 25) {
// do something
}
}
private:
std::mt19937 mt;
std::uniform_int_distribution<int> dist1;
std::uniform_int_distribution<int> dist2;
};
As you see, there are two functions, they all need a random number to do something.
In this case, can I make the data member std::mt19937 mt
as static and initialize it in cpp file?
class Test {
...
private:
static std::mt19937 mt;
...
};
// cpp file
std::mt19937 Test::mt((std::random_device())());
I just tried and it seemed to work. But I don't know if there is something wrong with it.
Test t1; t1.func(); t1.func2();
Test t2; t2.func(); t2.func2();
Can I say that static or non-static won't cause any difference for the piece of code?
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