getegid()

Get the effective group ID

Synopsis:

#include <sys/types.h>
#include <unistd.h>

gid_t getegid( void );

Library:

libc

Use the -l c option to qcc to link against this library. This library is usually included automatically.

Description:

The getegid() function gets the effective group ID for the calling process.

Returns:

The calling process's effective group ID. This function can't fail.

Examples:

/*
 * Print the effective group ID of a process
 */
#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <unistd.h>

int main( void )
{
  printf( "My effective group ID is %d\n", getegid() );
  return EXIT_SUCCESS;
}

Classification:

POSIX 1003.1

Safety:
Cancellation point	No
Interrupt handler	No
Signal handler	Yes
Thread	Yes