Memory management, portable types, math constants, and timing. More...

#include <stdlib.h>
#include <stdarg.h>
#include "basic.h"
#include <time.h>

Include dependency graph for basic.c:

Functions
unsigned long	Clock ()

void *	MallocWithErrorMessage (size_t Size)
	malloc with an error message on failure. More...

void *	ReallocWithErrorMessage (void *Ptr, size_t Size)
	realloc with an error message and free on failure. More...

void	ErrorMessage (const char *Format,...)
	Redefine this function to customize error messages. More...

Detailed Description

Memory management, portable types, math constants, and timing.

Author: Pascal Getreuer getre.nosp@m.uer@.nosp@m.gmail.nosp@m..com

This file implements a function Clock, a timer with millisecond precision. In order to obtain timing at high resolution, platform- specific functions are needed:

On Windows systems, the GetSystemTime function is used.
On POSIX systems, the gettimeofday function is used.

Otherwise as a fallback, time.h time is used, and in this case Clock has only second accuracy. This file attempts to detect whether the platform is POSIX or Windows and defines Clock accordingly. A particular implementation can be forced by defining USE_GETSYSTEMTIME, USE_GETTIMEOFDAY, or USE_TIME.

This program is free software: you can use, modify and/or redistribute it under the terms of the simplified BSD License. You should have received a copy of this license along this program. If not, see http://www.opensource.org/licenses/bsd-license.html.

Definition in file basic.c.