c++ delete first element in vector code example

Example 1: c++ vector pop first element

std::vector<int> vect;

vect.erase(vect.begin());

Example 2: remove first element from vector c++

// Deletes the first element from vector v
v.erase(v.begin());

Example 3: vector erase specific element

template <typename T>
void remove(std::vector<T>& vec, size_t pos)
{
    std::vector<T>::iterator it = vec.begin();
    std::advance(it, pos);
    vec.erase(it);
}