emalloc.cpp File Reference

#include "emalloc.h"
#include "danerror.h"
#include <stdlib.h>

Go to the source code of this file.

Functions
void *	Emalloc (int Size)
void *	Erealloc (void *ptr, int size)
void	Efree (void *ptr)

Function Documentation

Efree()

void Efree

(

void *

ptr

)

Definition at line 79 of file emalloc.cpp.

                      { 
  if (ptr == NULL)
    DoError (ILLEGALMALLOCREQUEST, "Attempted to free NULL ptr");

  free(ptr); 

}                                /* Efree */

Emalloc()

void* Emalloc

(

int

Size

)

This routine attempts to allocate the specified number of bytes. If the memory can be allocated, a pointer to the memory is returned. If the memory cannot be allocated, or if the allocation request is negative or zero, an error is trapped.

Parameters

Size	number of bytes of memory to be allocated

Returns

Pointer to allocated memory.

Note

Exceptions:

• NOTENOUGHMEMORY unable to allocate Size bytes
• ILLEGALMALLOCREQUEST negative or zero request size

History: 4/3/89, DSJ, Created.

Definition at line 47 of file emalloc.cpp.

                        {
  void *Buffer;

  if (Size <= 0)
    DoError (ILLEGALMALLOCREQUEST, "Illegal malloc request size");
  Buffer = (void *) malloc (Size);
  if (Buffer == NULL) {
    DoError (NOTENOUGHMEMORY, "Not enough memory");
    return (NULL);
  }
  else
    return (Buffer);

}                                /* Emalloc */

Erealloc()

void* Erealloc	(	void *	ptr,
		int	size
	)

Definition at line 64 of file emalloc.cpp.

                                    {
  void *Buffer;

  if (size < 0 || (size == 0 && ptr == NULL))
    DoError (ILLEGALMALLOCREQUEST, "Illegal realloc request size");

  Buffer = (void *) realloc (ptr, size);
  if (Buffer == NULL && size != 0)
    DoError (NOTENOUGHMEMORY, "Not enough memory");
  return (Buffer);

}                                /* Erealloc */