std::find on a vector of object pointers

Question

I have a class A with a member which is a vector of object pointers of another class B

class A
{
    std::vector m_member_A
<         


        

Answer 1

If you want to compare values instead of comparing pointers, you might want to use std::find_if instead:

bool IsFoo (B* _item) {
    bool result = false;

    if ( _item != nullptr && _item->value == 1 ) //Whatever is your criteria
        result = true; 

    return result;
}

std::vector m_member_A;
B* instance = std::find_if (m_member_A.begin(), m_member_A.end(), IsFoo);