Why does the output result become different in this way? Works: struct

Question

Why does the output result become different in this way? Works: struct

A {
void Baa(int) {};
}

A a;

struct U {
void Buu() {
boost::bind(&A::Baa, &a, _1);
}
}

Not works:
struct A {
void Baa(int) {};
};

struct U {
void Buu() {
boost::bind(&A::Baa, &a, _1);
}
A a;
};

0

02.04.2020

2 ответов

24 просмотра

Chandradeep Dey

if boost::bind works the same way as std::bind, you are supposed to store the resulting callable object somewhere and call it later. :/ otherwise the expression inside Buu() has no effect, and the struct is empty.

0

02.04.2020

Andrea Biagiao · Accepted Answer

Andrea Biagiao

https://gcc.godbolt.org/z/D2KJdf

0

02.04.2020

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