xref: /openbsd-src/gnu/usr.bin/perl/cpan/bignum/t/bigint.t (revision eac174f2741a08d8deb8aae59a7f778ef9b5d770)
1*eac174f2Safresh1# -*- mode: perl; -*-
2b8851fccSafresh1
3b8851fccSafresh1###############################################################################
4b8851fccSafresh1
5b8851fccSafresh1use strict;
6b8851fccSafresh1use warnings;
7b8851fccSafresh1
8*eac174f2Safresh1use Test::More tests => 17;
9b8851fccSafresh1
10*eac174f2Safresh1use bigint;
11b8851fccSafresh1
12b8851fccSafresh1###############################################################################
13b8851fccSafresh1# general tests
14b8851fccSafresh1
15b8851fccSafresh1my $x = 5;
16*eac174f2Safresh1is(ref($x), 'Math::BigInt', '$x = 5 makes $x a Math::BigInt');
17b8851fccSafresh1
18*eac174f2Safresh1$x = 2 + 3.5;
19*eac174f2Safresh1is($x, 5.5, '2 + 3.5 = 5.5');
20*eac174f2Safresh1is(ref($x), 'Math::BigInt', '$x = 2 + 3.5 makes $x a Math::BigInt');
21b8851fccSafresh1
22b8851fccSafresh1$x = 2 ** 255;
23*eac174f2Safresh1is(ref($x), 'Math::BigInt', '$x = 2 ** 255 makes $x a Math::BigInt');
24b8851fccSafresh1
25b8851fccSafresh1is(12->bfac(), 479001600, '12->bfac() = 479001600');
26b8851fccSafresh1is(9/4, 2, '9/4 = 2');
27b8851fccSafresh1
28*eac174f2Safresh1is(4.5 + 4.5, 8, '4.5 + 4.5 = 8');                         # truncate
29*eac174f2Safresh1is(ref(4.5 + 4.5), 'Math::BigInt', '4.5 + 4.5 makes a Math::BigInt');
30b8851fccSafresh1
31b8851fccSafresh1###############################################################################
32b8851fccSafresh1# accuracy and precision
33b8851fccSafresh1
34b8851fccSafresh1is(bigint->accuracy(), undef, 'get accuracy');
35*eac174f2Safresh1bigint->accuracy(12);
36b8851fccSafresh1is(bigint->accuracy(), 12, 'get accuracy again');
37*eac174f2Safresh1bigint->accuracy(undef);
38*eac174f2Safresh1is(bigint->accuracy(), undef, 'get accuracy again');
39b8851fccSafresh1
40b8851fccSafresh1is(bigint->precision(), undef, 'get precision');
41*eac174f2Safresh1bigint->precision(12);
42b8851fccSafresh1is(bigint->precision(), 12, 'get precision again');
43*eac174f2Safresh1bigint->precision(undef);
44*eac174f2Safresh1is(bigint->precision(), undef, 'get precision again');
45b8851fccSafresh1
46b8851fccSafresh1is(bigint->round_mode(), 'even', 'get round mode');
47*eac174f2Safresh1bigint->round_mode('odd');
48b8851fccSafresh1is(bigint->round_mode(), 'odd', 'get round mode again');
49*eac174f2Safresh1bigint->round_mode('even');
50*eac174f2Safresh1is(bigint->round_mode(), 'even', 'get round mode again');
51