string to int in c++
#include <iostream>
#include <string>
using namespace std;
int main() {
string s = "10";
try
{
int i = stoi(s);
cout << i << '\n';
}
catch (invalid_argument const &e)
{
cout << "Bad input: std::invalid_argument thrown" << '\n';
}
catch (out_of_range const &e)
{
cout << "Integer overflow: std::out_of_range thrown" << '\n';
}
return 0;
}how to string to integer in c++
#include<string>
string str1 = "45";
string str2 = "3.14159";
string str3 = "31337 geek";
int myint1 = stoi(str1);
std::cout<<stoi(str1);how to convert string to int in c++
string s = "123";
int n = s.size();
int num = 0;
for(int i = 0 ; i<n;i++)//this what stoi built function do XD
{
num = num*10+(s[i]-'0');
}Copyright © 2021 Codeinu
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