CPP

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());

how to remove an element from a vector by value c++

std::vector<int> v; 
// fill it up somehow
v.erase(std::remove(v.begin(), v.end(), 99), v.end()); 
// really remove all elements with value 99

how to erase a certain value from a vector in C++

#include <vector>
#include <algorithm>
#include <iostream>

int main()
{
	//C++20 std::erase function wraps erase-remove idiom

	std::vector<int> ivec{ 1, 5, 7, 2, 1, 3, 1, 7, 1 };
	auto n = erase(ivec, 1); //ADL
	std::cout << n << " elements erased
";
	for (auto i : ivec)
		std::cout << i << ' ';
}

remove from vector by value c++

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

c++ vector remove element by value

carVec.erase(std::remove_if(carVec.begin(), carVec.end(), [&id_to_delete](const Car& ele)->bool
            {
                return ele.getnewId() == id_to_delete;
            }), carVec.end());