How can I convert a std::string to int?

Question

Just have a quick question. I\'ve looked around the internet quite a bit and I\'ve found a few solutions but none of them have worked yet. Looking at converting a string to

Answer 1

I know this question is really old but I think there's a better way of doing this

#include 
#include 

bool string_to_int(std::string value, int * result) {
  std::stringstream stream1, stream2;
  std::string stringednumber;
  int tempnumber;
  stream1 << value;
  stream1 >> tempnumber;
  stream2 << tempnumber;
  stream2 >> stringednumber;
  if (!value.compare(stringednumber)) {
    *result = tempnumber;
    return true;
  }
  else return false;
}

If I wrote the code right, this will return a boolean value that tells you if the string was a valid number, if false, it wasn't a number, if true it was a number and that number is now result, you would call this this way:

std::string input;
std::cin >> input;
bool worked = string_to_int(input, &result);