C++ Erase Vector Element By Value Rather Than By Position?

Answer :

How about std::remove() instead:

#include <algorithm> ... vec.erase(std::remove(vec.begin(), vec.end(), 8), vec.end()); 

This combination is also known as the erase-remove idiom.

You can use std::find to get an iterator to a value:

#include <algorithm> std::vector<int>::iterator position = std::find(myVector.begin(), myVector.end(), 8); if (position != myVector.end()) // == myVector.end() means the element was not found     myVector.erase(position); 

You can not do that directly. You need to use std::remove algorithm to move the element to be erased to the end of the vector and then use erase function. Something like: myVector.erase(std::remove(myVector.begin(), myVector.end(), 8), myVec.end());. See this erasing elements from vector for more details.