constant

Look up a POSIX constant by name.

Σύνοψη

my $enoent = POSIX::constant("ENOENT");

Τι επιστρέφεται

The integer or floating-point value of the named constant, or undef if the name is not known.

Διαφορές από το upstream

Fully compatible with upstream POSIX. Ordinary code should import the constant by name rather than going through this accessor - it exists mainly for tooling and introspection.