07-02-2004
printf is POSIX.2 compliant - in plain English it should be available on any Unix that claims to support POSIX standards. Old system may not have it.
printf works a lot like the C library function with the same name, except it works from the command line. It's pretty cool.
The reason POSIX standards exist is to help people who want have their code work correctly on different flavors of Unix.
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LEARN ABOUT REDHAT
xs::apitest
XS::APItest(3pm) Perl Programmers Reference Guide XS::APItest(3pm)
NAME
XS::APItest - Test the perl C API
SYNOPSIS
use XS::APItest;
print_double(4);
ABSTRACT
This module tests the perl C API. Currently tests that "printf" works correctly.
DESCRIPTION
This module can be used to check that the perl C API is behaving correctly. This module provides test functions and an associated test
script that verifies the output.
This module is not meant to be installed.
EXPORT
Exports all the test functions:
print_double
Test that a double-precision floating point number is formatted correctly by "printf".
print_double( $val );
Output is sent to STDOUT.
print_long_double
Test that a "long double" is formatted correctly by "printf". Takes no arguments - the test value is hard-wired into the function (as
"7").
print_long_double();
Output is sent to STDOUT.
have_long_double
Determine whether a "long double" is supported by Perl. This should be used to determine whether to test "print_long_double".
print_long_double() if have_long_double;
print_nv
Test that an "NV" is formatted correctly by "printf".
print_nv( $val );
Output is sent to STDOUT.
print_iv
Test that an "IV" is formatted correctly by "printf".
print_iv( $val );
Output is sent to STDOUT.
print_uv
Test that an "UV" is formatted correctly by "printf".
print_uv( $val );
Output is sent to STDOUT.
print_int
Test that an "int" is formatted correctly by "printf".
print_int( $val );
Output is sent to STDOUT.
print_long
Test that an "long" is formatted correctly by "printf".
print_long( $val );
Output is sent to STDOUT.
print_float
Test that a single-precision floating point number is formatted correctly by "printf".
print_float( $val );
Output is sent to STDOUT.
SEE ALSO
XS::Typemap, perlapi.
AUTHORS
Tim Jenness, <t.jenness@jach.hawaii.edu>, Christian Soeller, <csoelle@mph.auckland.ac.nz>, Hugo van der Sanden <hv@crypt.compulink.co.uk>
COPYRIGHT AND LICENSE
Copyright (C) 2002 Tim Jenness, Christian Soeller, Hugo van der Sanden. All Rights Reserved.
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.8.0 2002-06-01 XS::APItest(3pm)