Function error

freebsd/contrib/zstd/zlibWrapper/examples/minigzip.c:356–361

=========================================================================== * Display error message and exit */

(msg)

 * Display error message and exit
 */
void error(msg)
    const char *msg;
{
    fprintf(stderr, "%s: %s\n", prog, msg);
    exit(1);
}

/* ===========================================================================
 * Compress input to output then close both files.