r1 - 26 May 2008 - TWikiGuest
NAME
XS::APItest - Test the perl C APISYNOPSIS
use XS::APItest;
print_double(4);
ABSTRACT
This module tests the perl C API. Currently tests thatprintf
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 doubleis 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 doubleis 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
NVis formatted correctly by -
printf. -
print_nv( $val );
- Output is sent to STDOUT.
- print_iv
-
Test that an
IVis formatted correctly by -
printf. -
print_iv( $val );
- Output is sent to STDOUT.
- print_uv
-
Test that an
UVis formatted correctly by -
printf. -
print_uv( $val );
- Output is sent to STDOUT.
- print_int
-
Test that an
intis formatted correctly by -
printf. -
print_int( $val );
- Output is sent to STDOUT.
- print_long
-
Test that an
longis 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
- Evaluates the passed SV. Result handling is done the same as for
-
call_sv()etc. - eval_pv
- Exercises the C function of the same name in scalar context. Returns the
- same SV that the C function returns.
- require_pv
- Exercises the C function of the same name. Returns nothing.
