emalloc.h File Reference

#include "host.h"
#include "callcpp.h"

Go to the source code of this file.

Macros
#define	NOTENOUGHMEMORY   2000
#define	ILLEGALMALLOCREQUEST   2001

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

Macro Definition Documentation

ILLEGALMALLOCREQUEST

#define ILLEGALMALLOCREQUEST   2001

Definition at line 28 of file emalloc.h.

NOTENOUGHMEMORY

#define NOTENOUGHMEMORY   2000

---

Include Files and Type Defines

Definition at line 27 of file emalloc.h.

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

)

---

Public Function Prototypes

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 */