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Edit: Int128.pm
package Math::Int128; use strict; use warnings; # The "our $VERSION" bit needs to be at the beginning of the line for the # benefit of the RewriteVersion plugin. BEGIN { our $VERSION = '0.22'; require XSLoader; XSLoader::load('Math::Int128', $VERSION); } use Math::Int64 0.51; use constant MAX_INT128 => string_to_int128 ( '0x7fff_ffff_ffff_ffff_ffff_ffff_ffff_ffff'); use constant MIN_INT128 => string_to_int128 ('-0x8000_0000_0000_0000_0000_0000_0000_0000'); use constant MAX_UINT128 => string_to_uint128( '0xffff_ffff_ffff_ffff_ffff_ffff_ffff_ffff'); require Exporter; our @ISA = qw(Exporter); our %EXPORT_TAGS = ( ctors => [qw( int128 uint128 string_to_int128 string_to_uint128 )], pack => [qw( int128_to_number int128_to_hex net_to_int128 int128_to_net native_to_int128 int128_to_native uint128_to_number uint128_to_hex net_to_uint128 uint128_to_net native_to_uint128 uint128_to_native )], op => [qw( int128_set int128_inc int128_dec int128_add int128_sub int128_mul int128_pow int128_div int128_mod int128_divmod int128_neg int128_not int128_and int128_or int128_xor int128_left int128_right int128_average uint128_set uint128_inc uint128_dec uint128_add uint128_sub uint128_mul uint128_pow uint128_div uint128_mod uint128_divmod uint128_not uint128_and uint128_or uint128_xor uint128_left uint128_right uint128_average)], limits => [qw( MAX_INT128 MIN_INT128 MAX_UINT128 )] ); our @EXPORT_OK = map @$_, values %EXPORT_TAGS; use overload ( '+' => \&_add, '+=' => \&_add, '-' => \&_sub, '-=' => \&_sub, '*' => \&_mul, '*=' => \&_mul, '**' => \&_pow, '**=' => \&_pow, '/' => \&_div, '/=' => \&_div, '%' => \&_remainder, '%=' => \&_remainder, 'neg' => \&_neg, '++' => \&_inc, '--' => \&_dec, '!' => \&_not, '~' => \&_bnot, '&' => \&_and, '|' => \&_or, '^' => \&_xor, '<<' => \&_left, '>>' => \&_right, '<=>' => \&_spaceship, '>' => \&_gtn, '<' => \&_ltn, '>=' => \&_gen, '<=' => \&_len, '==' => \&_eqn, '!=' => \&_nen, 'bool' => \&_bool, '0+' => \&_number, '""' => \&_string, '=' => \&_clone, fallback => 1 ); package Math::UInt128; use overload ( '+' => \&_add, '+=' => \&_add, '-' => \&_sub, '-=' => \&_sub, '*' => \&_mul, '*=' => \&_mul, '**' => \&_pow, '**=' => \&_pow, '/' => \&_div, '/=' => \&_div, '%' => \&_remainder, '%=' => \&_remainder, 'neg' => \&_neg, '++' => \&_inc, '--' => \&_dec, '!' => \&_not, '~' => \&_bnot, '&' => \&_and, '|' => \&_or, '^' => \&_xor, '<<' => \&_left, '>>' => \&_right, '<=>' => \&_spaceship, '>' => \&_gtn, '<' => \&_ltn, '>=' => \&_gen, '<=' => \&_len, '==' => \&_eqn, '!=' => \&_nen, 'bool' => \&_bool, '0+' => \&_number, '""' => \&_string, '=' => \&_clone, fallback => 1 ); 1; __END__ =encoding UTF-8 =head1 NAME Math::Int128 - Manipulate 128 bits integers in Perl =head1 SYNOPSIS use Math::Int128 qw(int128); my $i = int128(1); my $j = $i << 100; my $k = int128("1234567890123456789000000"); print($i + $j * 1000000); =head1 DESCRIPTION This module adds support for 128 bit integers, signed and unsigned, to Perl. In order to compile this module, your compiler must support one of either the C<__int128> or C<int __attribute__ ((__mode__ (TI)))> types. Both GCC and Clang have supported one or the other type for some time, but they may only do so on 64-bit platforms. =head2 OSX Caveat On OSX, the system Perl is compiled with both the "-arch x86_64" and "-arch i386" flags. When building this module with a Perl like this, we strip the "-arch i386" flag out, meaning it is only compiled for the 64-bit architecture. Attempting to use this module while running in 32-bit mode may lead to brokenness. It's also possible that this will cause other problems that we cannot foresee. Note that if you have built your own non-multiarch Perl on OSX then this will not be an issue. =head1 API See L<Math::Int64>. This module provides a similar set of functions, just C<s/64/128/g> ;-) Besides that, as object allocation and destruction has been found to be a bottleneck, an alternative set of operations that use their first argument as the output (instead of the return value) is also provided. They are as follows: int128_inc int128_dec int128_add int128_sub int128_mul int128_pow int128_div int128_mod int128_divmod int128_and int128_or int128_xor int128_left int128_right int128_not int128_neg and the corresponding C<uint128> versions. For instance: my $a = int128("1299472960684039584764953"); my $b = int128("-2849503498690387383748"); my $ret = int128(); int128_mul($ret, $a, $b); int128_inc($ret, $ret); # $ret = $ret + 1 int128_add($ret, $ret, "12826738463"); say $ret; C<int128_divmod> returns both the result of the division and the remainder: my $ret = int128(); my $rem = int128(); int128_divmod($ret, $rem, $a, $b); =head1 C API The module provides a C API that allows to wrap/unwrap int128_t and uint128_t values from other modules written in C/XS. It is identical to that provided by L<Math::Int64> so read the documentation there in order to know how to use it. =head1 TODO Support more operations as log2, pow, etc. =head1 BUGS AND SUPPORT The C API feature is experimental. This module requires 128bit integer support from the C compiler. Currently only gcc 4.4 and later are supported. If you have a different compiler that also supports 128bit integers get in touch with me in order to have it supported. You can send me bug reports by email to the address that appears below or use the CPAN RT bug tracking system available at L<http://rt.cpan.org>. The source for the development version of the module is hosted at GitHub: L<https://github.com/salva/p5-Math-Int128>. =head2 My wishlist If you like this module and you're feeling generous, take a look at my Amazon Wish List: L<http://amzn.com/w/1WU1P6IR5QZ42> =head1 SEE ALSO L<Math::Int64>, L<Math::GMP>, L<Math::GMPn>. L<http://perlmonks.org/?node_id=886488>. =head1 COPYRIGHT AND LICENSE Copyright E<copy> 2007, 2009, 2011-2015 by Salvador Fandiño (sfandino@yahoo.com) Copyright E<copy> 2014-2015 by Dave Rolsky This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.10.1 or, at your option, any later version of Perl 5 you may have available. =cut