98 lines
2.8 KiB
Perl
98 lines
2.8 KiB
Perl
# GMP mpf module.
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# Copyright 2001, 2003 Free Software Foundation, Inc.
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#
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# This file is part of the GNU MP Library.
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#
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# The GNU MP Library is free software; you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published
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# by the Free Software Foundation; either version 2.1 of the License, or (at
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# your option) any later version.
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#
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# The GNU MP Library is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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# License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with the GNU MP Library; see the file COPYING.LIB. If not, write to
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# the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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# MA 02110-1301, USA.
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package GMP::Mpf;
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require GMP;
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require Exporter;
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@ISA = qw(GMP Exporter);
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@EXPORT = qw();
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@EXPORT_OK = qw();
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%EXPORT_TAGS = ('all' => [qw(
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ceil floor get_default_prec get_prec mpf mpf_eq
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reldiff set_default_prec set_prec trunc)],
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'constants' => [@EXPORT],
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'noconstants' => [@EXPORT]);
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Exporter::export_ok_tags('all');
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use overload
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'+' => \&overload_add, '+=' => \&overload_addeq,
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'-' => \&overload_sub, '-=' => \&overload_subeq,
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'*' => \&overload_mul, '*=' => \&overload_muleq,
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'/' => \&overload_div, '/=' => \&overload_diveq,
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'**' => \&overload_pow, '**=' => \&overload_poweq,
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'<<' => \&overload_lshift, '<<=' => \&overload_lshifteq,
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'>>' => \&overload_rshift, '>>=' => \&overload_rshifteq,
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'bool' => \&overload_bool,
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'not' => \&overload_not,
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'!' => \&overload_not,
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'<=>' => \&overload_spaceship,
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'++' => \&overload_inc,
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'--' => \&overload_dec,
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'abs' => \&overload_abs,
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'neg' => \&overload_neg,
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'sqrt' => \&overload_sqrt,
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'=' => \&overload_copy,
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'""' => \&overload_string;
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sub import {
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foreach (@_) {
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if ($_ eq ':constants') {
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overload::constant ('integer' => \&overload_constant,
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'binary' => \&overload_constant,
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'float' => \&overload_constant);
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} elsif ($_ eq ':noconstants') {
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overload::remove_constant ('integer' => \&overload_constant,
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'binary' => \&overload_constant,
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'float' => \&overload_constant);
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}
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}
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goto &Exporter::import;
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}
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sub overload_string {
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my $fmt;
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BEGIN { $^W = 0; }
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if (defined ($#)) {
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$fmt = $#;
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BEGIN { $^W = 1; }
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# protect against calling sprintf_internal with a bad format
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if ($fmt !~ /^((%%|[^%])*%[-+ .\d]*)([eEfgG](%%|[^%])*)$/) {
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die "GMP::Mpf: invalid \$# format: $#\n";
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}
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$fmt = $1 . 'F' . $3;
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} else {
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$fmt = '%.Fg';
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}
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GMP::sprintf_internal ($fmt, $_[0]);
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}
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1;
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__END__
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# Local variables:
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# perl-indent-level: 2
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# End:
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