# include <stdio.h>

# include "xmalloc.h"

//**************************************************************************************80

int main ( )

//**************************************************************************************80
//
//  Purpose:
//
//    xmalloc_test1 demonstrates simple calls to xmalloc.
//
//  License:
//
//    I don't care what the hell you do with this code.
//
//  Modified:
//
//    07 July 2017
//
//  Author:
//
//    John Burkardt
//
{
  int n = 1000;
  size_t nbytes;
  int *x;
  
  printf ( "\n" );
  printf ( "xmalloc_test1:\n" );
  printf ( "  Test xmalloc for memory allocation.\n" );
  
  nbytes = n * sizeof ( int );
  
  printf ( "\n" );
  printf ( "  Request %zu bytes of memory using malloc:\n", nbytes );
  x = ( int * ) malloc ( nbytes );
  free ( x );
  
  printf ( "\n" );
  printf ( "  Request %zu bytes of memory using malloc_or_exit:\n", nbytes );
  x = ( int * ) malloc_or_exit ( nbytes, __FILE__, __LINE__ );
  free ( x );

  printf ( "\n" );
  printf ( "  Request %zu bytes of memory using ymalloc:\n", nbytes );
  x = ( int * ) ymalloc ( nbytes );
  free ( x );
//
//  The author made a revolting choice in defining xmalloc;
//  I have registered my opinion of this code by renaming it.
//  I wasted the requisite half hour wondering why calls failed that
//  included spaces, or a different name for the size variable.
//
  printf ( "\n" );
  printf ( "  Request %zu bytes of memory using xmalloc:\n", nbytes );
  printf ( "  Must be used LITERALLY as 'xmalloc(nbytes)'\n" );
  printf ( "  no spaces, no changes whatsoever!\n" );
  x = xmalloc(nbytes);
  free ( x );
//
//  Demonstrate that xmalloc will produce an error message for a request of 0 bytes.
//
  nbytes = 0;
  printf ( "\n" );
  printf ( "  Request %zu bytes of memory using xmalloc(nbytes):\n", nbytes );
  x = xmalloc(nbytes);
  free ( x );
//
//  Terminate.
//
  printf ( "\n" );
  printf ( "xmalloc_test1:\n" );
  printf ( "  Normal end of execution.\n" );
  
  return 0;
}