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