CONTENTS

• NAME
• SYNOPSIS
• ABSTRACT
• DESCRIPTION
  • EXPORT
• SEE ALSO
• AUTHORS
• COPYRIGHT AND LICENSE

#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.

# call_sv, call_pv, call_method

These exercise the C calls of the same names. Everything after the flags arg is passed as the the args to the called function. They return whatever the C function itself pushed onto the stack, plus the return value from the function; for example

call_sv( sub { @_, 'c' }, G_ARRAY, 'a', 'b'); # returns 'a', 'b', 'c', 3
call_sv( sub { @_ }, G_SCALAR, 'a', 'b'); # returns 'b', 1

# eval_sv

Evalulates the passed SV. Result handling is done the same as for call_sv() etc.

# eval_pv

Excercises the C function of the same name in scalar context. Returns the same SV that the C function returns.

# require_pv

Excercises the C function of the same name. Returns nothing.

#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) 2002,2004 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.

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