Re: [Dev-C++] I want to include stdlib and string

[<wa...@wa...>]

On 17 Oct 2004 at 5:50, =DF =F6 R N L =EB G =EB N =D0 wrote:

> Respected Sir
> I have used Dev C++ and I want some suggestions from you. As you
> suggested me not to use the .h operator with the standard include
> files, so I did and the compiler indicated that it don't knw any
> header file named as conio. Also when I included the file iostream in
> my program, I listed using its functions of cout and endl seperately.
> I want to include stdlib and string header filesso please indicate me
> what would be the syntax of including these 2 libraries in my program.
> regards FaRAzZ

To use old C header files, use

#include <c[headerfilename]>

For example,

#include <cstdlib>

instead of

#include <stdlib.h>

To use iostream, you write:

#include <iostream>

However, to use cout and endl, you have to either put the line:

using namespace std;

OR

using std::cout;
using std::endl;


However, if I remember correctly, conio.h is not an Ansi standard 
include file, it's a Borland-specific file.  If you're going to use 
that, you're going to have to track down someone's implementation of 
that for mingw.

HTH.

Watson (the pencil neck) Davis

EXAMPLES:
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#include <cstdlib>
#include <iostream>

// Using the whole namespace
using namespace std;

int main()
{

   cout << "Hello, world" << endl;
   
   system("pause");
}   
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#include <cstdlib>
#include <iostream>

//  Using just the functions we need.
using std::cout;
using std::endl;

int main()
{
   cout << "Hello, world" << endl;
   
   system("pause");
}