/
datatypes.c
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/
datatypes.c
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/*
Copyright (C) 2002-2009, Parrot Foundation.
License: Artistic 2.0, see README and LICENSE for details
$Id$
=head1 NAME
src/datatypes.c - Parrot and native data types functions
=head1 DESCRIPTION
The functions in this file are used in .ops files to access the C<enum>
and C string constants for Parrot and native data types defined in
F<include/parrot/datatypes.h>.
=head2 Functions
=over 4
=cut
*/
#include "parrot/parrot.h"
/* HEADERIZER HFILE: include/parrot/datatypes.h */
/*
=item C<INTVAL Parrot_get_datatype_enum(PARROT_INTERP, const STRING *type_name)>
Return datatype C<enum> for C<STRING*> type_name.
=cut
*/
PARROT_EXPORT
PARROT_WARN_UNUSED_RESULT
INTVAL
Parrot_get_datatype_enum(PARROT_INTERP, ARGIN(const STRING *type_name))
{
ASSERT_ARGS(Parrot_get_datatype_enum)
char * const type = Parrot_str_to_cstring(interp, type_name);
int i;
for (i = enum_first_type; i < enum_last_type; i++) {
if (STREQ(data_types[i - enum_first_type].name, type)) {
Parrot_str_free_cstring(type);
return i;
}
}
Parrot_str_free_cstring(type);
return enum_type_undef;
}
/*
=item C<STRING * Parrot_get_datatype_name(PARROT_INTERP, INTVAL type)>
Return datatype name for C<type>.
=cut
*/
PARROT_EXPORT
PARROT_WARN_UNUSED_RESULT
PARROT_CANNOT_RETURN_NULL
STRING *
Parrot_get_datatype_name(PARROT_INTERP, INTVAL type)
{
ASSERT_ARGS(Parrot_get_datatype_name)
const char * const s =
(type < enum_first_type || type >= enum_last_type)
? "illegal"
: data_types[type - enum_first_type].name;
return string_make(interp, s, strlen(s), NULL, PObj_external_FLAG);
}
/*
=item C<FLOATVAL floatval_divide_by_zero(PARROT_INTERP, FLOATVAL num)>
Only used to generate Infinity and NaN constants in our corresponding
header file.
=cut
*/
PARROT_EXPORT
FLOATVAL
floatval_divide_by_zero(SHIM_INTERP, FLOATVAL num)
{
ASSERT_ARGS(floatval_divide_by_zero)
const FLOATVAL zero = 0.0;
return num / zero;
}
/*
=back
=head1 SEE ALSO
F<include/parrot/datatypes.h>.
=cut
*/
/*
* Local variables:
* c-file-style: "parrot"
* End:
* vim: expandtab shiftwidth=4:
*/