getopt_long_only(3)        Library Functions Manual        getopt_long_only(3)

NAME
       getopt_long_only - parse long command-line options

LIBRARY
       Standard C library (libc, -lc)

SYNOPSIS
       #define _GNU_SOURCE
       #include <getopt.h>

       int getopt_long_only(int argc, char *argv[],
                  const char *optstring,
                  const struct option *longopts, int *longindex);

DESCRIPTION
       getopt_long_only() is like getopt_long(3), but '-' as well as "--" can
       indicate a long option.  If an option that starts with '-' (not "--")
       doesn't match a long option, but does match a short option, it is
       parsed as a short option instead.

ATTRIBUTES
       For an explanation of the terms used in this section, see
       attributes(7).

       +--------------------+---------------+---------------------------------+
       |Interface           | Attribute     | Value                           |
       +--------------------+---------------+---------------------------------+
       |getopt_long_only () | Thread safety | MT-Unsafe race:getopt env       |
       +--------------------+---------------+---------------------------------+
STANDARDS
       GNU.

SEE ALSO
       getopt(1), getopt(3), getopt_long(3), getsubopt(3)

Linux man-pages 6.19              2025-12-07               getopt_long_only(3)