NAME

POSIX::1003::Confstr - POSIX access to confstr()

SYNOPSIS

  use POSIX::1003::Confstr;   # import all

  use POSIX::1003::Confstr 'confstr';
  my $path = confstr('_CS_PATH');

  use POSIX::1003::Confstr '_CS_PATH';
  my $path = _CS_PATH;

  use POSIX::1003::Confstr '%confstr';
  my $key = $confstr{_CS_PATH};
  $confstr{_CS_NEW_CONF} = $key;

DESCRIPTION

With confstr() you can retreive string values from the operating system. It is the counterpart of sysconf() which can only return numeric values.

METHODS

FUNCTIONS

Standard POSIX

confstr($name)

Returns the confstr value related to the NAMEd constant. The $name must be a string. undef will be returned when the $name is not known by the system.

example:

  my $path = confstr('_CS_PATH') || '/bin:/usr/bin';

Additional

confstr_names()

Returns a list with all known names, unsorted.

CONSTANTS

%confstr

This exported variable is a (tied) HASH which maps _CS_* names to the unique numbers to be used with the system's confstr() function.

The following constants where detected on your system when the module got installed. The second column shows the value which where returned at that time.

  During installation, a symbol table will get inserted here.

SEE ALSO

This module is part of POSIX-1003 distribution version 1.02, built on November 10, 2020. Website: http://perl.overmeer.net/CPAN. The code is based on POSIX, which is released with Perl itself. See also POSIX::Util for additional functionality.

COPYRIGHTS

Copyrights 2011-2020 on the perl code and the related documentation by [Mark Overmeer]. For other contributors see ChangeLog.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See http://dev.perl.org/licenses/