Environment list access.

This function is compatible with the following targets:

ANSI

BeOS

EMB/RTOS

Mac OS

Palm OS

Win32

#include <stdlib.h>

char *getenv(char *name);

Parameters for this facility are:

name

char *

A buffer for the environment list

For Macintosh systems the getenv() is an empty function that always returns a null pointer (NULL). It is included in the Metrowerks stdlib.h header file to conform to the ANSI C Standard Library specification.

getenv() returns NULL for the Mac. For Windows getenv() returns zero on failure or the environmental variable.

"system"

#include <stdio.h>
#include <stdlib.h>

int main(void) 
{
	char *value;
	char *var = "path";

	if( (value = getenv(var)) == NULL)
	{ printf("%s is not a environmental variable", var);}
	else
	{ printf("%s = %s \n", var, value);}

	return 0;
}
Result:
path = c:\program files\metrowerks\codewarrior;c:\WINNT\system32





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Last updated: August 16, 2000