c++ vector pop front code example

Example 1: c++ vector pop first element

std::vector<int> vect;

vect.erase(vect.begin());

Example 2: vector erase specific element

vector.erase( vector.begin() + 3 ); // Deleting the fourth element

Example 3: delete from front in vector c++

// Deleting first element
vector_name.erase(vector_name.begin());

// Deleting xth element from start
vector_name.erase(vector_name.begin()+(x-1));

// Deleting from the last
vector_name.pop_back();

Example 4: 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);
}