remove element by index from vector c++
// Deletes the second element (vec[1])
vec.erase(vec.begin() + 1);
// Deletes the second through third elements (vec[1], vec[2])
vec.erase(vec.begin() + 1, vec.begin() + 3);remove element by index from vector c++
// Deletes the second element (vec[1])
vec.erase(vec.begin() + 1);
// Deletes the second through third elements (vec[1], vec[2])
vec.erase(vec.begin() + 1, vec.begin() + 3);c++ vector pop first element
std::vector<int> vect;
vect.erase(vect.begin());remove value from vector c++
#include <algorithm>
#include <vector>
// using the erase-remove idiom
std::vector<int> vec {2, 4, 6, 8};
int value = 8 // value to be removed
vec.erase(std::remove(vec.begin(), vec.end(), value), vec.end());remove first element from vector c++
// Deletes the first element from vector v
v.erase(v.begin());c++ remove element from vector
vector.erase(position) // remove certain position
// or
vector.erase(left,right) // remove positions within rangeremove element by index from vector c++
// Why not setup a lambda you can use again & again
auto removeByIndex =
[]<class T>(std::vector<T> &vec, unsigned int index)
{
// This is the meat & potatoes
vec.erase(vec.begin() + index);
};
// Then you can throw whatever vector at it you desire
std::vector<std::string> stringvec = {"Hello", "World"};
// Will remove index 1: "World"
removeByIndex(stringvec, 1);
// Vector of integers, we will use push_back
std::vector<unsigned int> intvec;
intvec.push_back(33);
intvec.push_back(66);
intvec.push_back(99);
// Will remove index 2: 99
removeByIndex(intvec, 2);Copyright © 2021 Codeinu
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