string.h

im trying to use this very simple code, but both VC++6.0 and DevC++4.0 have problems to identify the string....!!!
im wondering why?

Code:

---

#include <stdio.h>
#include <iostream.h>
#include <string.h>
int main(int argc, char *argv[])
{

  std::cout<<"yess";
  std::cout<<"helloo"<<200;
  int a;
  std::cin>>a;
  std::string s="moemen ahmed";
  string ss=s.substr(7,5);
  cout<<ss;
  cin>>a;

  return 0;
}

---

thanks in advance :)

>>have problems to identify the string
Can you expand on what your problem is..

my problem was that the compiler had error due to the "string datatype"

now i got it, it was a very small thing

#include <string> // the right phrase
not
#include <string.h> //the wrong one

!!!!

I believe you need to to std::string to be standard compliant. some compilers need the std::

Code:

---

#include <cstdio>
#include <iostream>
#include <string>

int main (int argc, char *argv[])
{

  std::cout<<"yess";
  std::cout<<"helloo"<<200;
  int a;
  std::cin>>a;
  std::string s="moemen ahmed";
  std::string ss=s.substr(7,5);
  std::cout<<ss;
  std::cin>>a;

  return 0;
}

---

The .h tells the compiler, include the C library. <string> and <string.h> are very different things.

may u tell us more about the differences between both

thanks

Quote:

---

Originally posted by moemen ahmed
may u tell us more about the differences between both

thanks

---

<string> is the C++ version, giving you these

<string.h> is the C version, giving you these