RE: [Dev-C++] string conversion to integer

[James G. <Jam...@Cl...>]

Try this:

#include <stdio.h>
#include <stdlib.h>
#include <string>

using namespace std;

int main(int argc, char *argv[])
{
  // C++ String
  string input_string = "123456";
  int conv_number = 0;
  // c_str() returns a char*
  conv_number = atoi(input_string.c_str());
  cout << "String converted to a number = " << conv_number << endl;
  cout << "conv_number + 100 = " << conv_number + 100 << endl;
  return 0;
}

Regards,

James.


-----Original Message-----
From: Alan Thomas [mailto:ala...@3n...]
Sent: Saturday, January 20, 2001 4:27 PM
To: dev...@li...
Subject: [Dev-C++] string conversion to integer


        I thought I knew how to convert string objects to integer.  I
thought a character (e.g., input_string[2] of object string input_string)
could be referenced in a string and converted using the C ASCII-to-integer
function atoi.  However, the compiler doesn`t like that and apparently does
not see an element of a string array as a character.

            How do you do this?                Thanks, Alan




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