Answers for "covert string to int c++"

string to int c++

// Both functions work identically though you'll need to use "#include <string>" 
atoi( str.c_str() );
stoi( str );

Posted by: Guest on April-07-2020

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');
 }

Posted by: Guest on July-12-2021

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