getgid()

Get the group ID

Synopsis:

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

gid_t getgid( void );

Library:

libc

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

Description:

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

Returns:

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

Examples:

/*
 * Print the group id of a process.
 */

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

int main( void )
{
    printf( "I belong to group ID %d\n", getgid() );
    return EXIT_SUCCESS;
}

Classification:

POSIX 1003.1

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