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);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());vector erase specific element
vector.erase( vector.begin() + 3 ); // Deleting the fourth elementc++ 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);vector erase
Input : myvector= {1, 2, 3, 4, 5}, iterator= myvector.begin()+2
myvector.erase(iterator);
Output : 1, 2, 4, 5
Input : myvector= {1, 2, 3, 4, 5, 6, 7, 8}, iterator1= myvector.begin()+3, iterator2= myvector.begin()+6
myvector.erase(iterator1, iterator2);
Output : 1, 2, 3, 7, 8Copyright © 2021 Codeinu
Forgot your account's password or having trouble logging into your Account? Don't worry, we'll help you to get back your account. Enter your email address and we'll send you a recovery link to reset your password. If you are experiencing problems resetting your password contact us
