Can I use ' == ' to compare two vectors. I tried it and seems to be working fine. But I don't know whether it will work in more complex situations

Question

First example:

int main(){
    using namespace std;   
    vector v1{10, 20, 30, 40, 50};
    vector v2{10, 20, 30, 40, 50};

    if(v1==v2         


        

Answer 1

You can check the documentation of operator== for vector: operator==,!=,<,<=,>,>=(std::vector)

Quoting from the link:

 template< class T, class Alloc >
 bool operator==( vector& lhs,
             vector& rhs );

Compares the contents of two containers.

Checks if the contents of lhs and rhs are equal, that is, whether lhs.size() == rhs.size() and each element in lhs has equivalent element in rhs at the same position.

parameters:

lhs, rhs containers whose contents to compare

T must meet the requirements of EqualityComparable in order to use versions

Return value

true if the contents of the containers are equivalent, false otherwise