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# -*- mode: perl; -*-
package Math::BigInt::Trace;
use strict;
use warnings;
use Exporter;
use Math::BigInt;
our @ISA = qw(Exporter Math::BigInt);
our $VERSION = '0.66';
use overload; # inherit overload from Math::BigInt
# Globals
our $accuracy = undef;
our $precision = undef;
our $round_mode = 'even';
our $div_scale = 40;
sub new {
my $proto = shift;
my $class = ref($proto) || $proto;
my $value = shift;
my $a = $accuracy;
$a = $_[0] if defined $_[0];
my $p = $precision;
$p = $_[1] if defined $_[1];
my $self = $class -> SUPER::new($value, $a, $p, $round_mode);
printf "Math::BigInt new '%s' => '%s' (%s)\n",
$value, $self, ref($self);
return $self;
}
sub import {
my $class = shift;
printf "%s -> import(%s)\n", $class, join(", ", @_);
# we catch the constants, the rest goes to parent
my $constant = grep { $_ eq ':constant' } @_;
my @a = grep { $_ ne ':constant' } @_;
if ($constant) {
overload::constant
integer => sub {
$class -> new(shift);
},
float => sub {
$class -> new(shift);
},
binary => sub {
# E.g., a literal 0377 shall result in an object whose value
# is decimal 255, but new("0377") returns decimal 377.
return $class -> from_oct($_[0]) if $_[0] =~ /^0_*[0-7]/;
$class -> new(shift);
};
}
$class -> SUPER::import(@a); # need it for subclasses
#$self -> export_to_level(1, $class, @_); # need this ?
}
1;
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