| Commit | Line | Data |
|---|
| 27e7b8bb |
1 | #!/usr/bin/perl -w |
| 2 | |
| 3 | # test the helper math routines in Math::BigFloat |
| 4 | |
| 5 | use Test::More; |
| 6 | use strict; |
| 7 | |
| 8 | BEGIN |
| 9 | { |
| 10 | $| = 1; |
| 11 | # to locate the testing files |
| 12 | my $location = $0; $location =~ s/_e_math.t//i; |
| 13 | if ($ENV{PERL_CORE}) |
| 14 | { |
| 15 | # testing with the core distribution |
| 16 | @INC = qw(../lib); |
| 17 | } |
| 18 | unshift @INC, '../lib'; |
| 19 | if (-d 't') |
| 20 | { |
| 21 | chdir 't'; |
| 22 | require File::Spec; |
| 23 | unshift @INC, File::Spec->catdir(File::Spec->updir, $location); |
| 24 | } |
| 25 | else |
| 26 | { |
| 27 | unshift @INC, $location; |
| 28 | } |
| 29 | print "# INC = @INC\n"; |
| 30 | |
| 31 | plan tests => 26; |
| 32 | } |
| 33 | |
| 233f7bc0 |
34 | use Math::BigFloat lib => 'Calc'; |
| 27e7b8bb |
35 | |
| 36 | ############################################################################# |
| 37 | # add |
| 38 | |
| 39 | my $a = Math::BigInt::Calc->_new("123"); |
| 40 | my $b = Math::BigInt::Calc->_new("321"); |
| 41 | |
| 42 | my ($x, $xs) = Math::BigFloat::_e_add($a,$b,'+','+'); |
| 43 | is (_str($x,$xs), '+444', 'add two positive numbers'); |
| 44 | is (_str($a,''), '444', 'a modified'); |
| 45 | |
| 46 | ($x,$xs) = _add (123,321,'+','+'); |
| 47 | is (_str($x,$xs), '+444', 'add two positive numbers'); |
| 48 | |
| 49 | ($x,$xs) = _add (123,321,'+','-'); |
| 50 | is (_str($x,$xs), '-198', 'add +x + -y'); |
| 51 | ($x,$xs) = _add (123,321,'-','+'); |
| 52 | is (_str($x,$xs), '+198', 'add -x + +y'); |
| 53 | |
| 54 | ($x,$xs) = _add (321,123,'-','+'); |
| 55 | is (_str($x,$xs), '-198', 'add -x + +y'); |
| 56 | ($x,$xs) = _add (321,123,'+','-'); |
| 57 | is (_str($x,$xs), '+198', 'add +x + -y'); |
| 58 | |
| 59 | ($x,$xs) = _add (10,1,'+','-'); |
| 60 | is (_str($x,$xs), '+9', 'add 10 + -1'); |
| 61 | ($x,$xs) = _add (10,1,'-','+'); |
| 62 | is (_str($x,$xs), '-9', 'add -10 + +1'); |
| 63 | ($x,$xs) = _add (1,10,'-','+'); |
| 64 | is (_str($x,$xs), '+9', 'add -1 + 10'); |
| 65 | ($x,$xs) = _add (1,10,'+','-'); |
| 66 | is (_str($x,$xs), '-9', 'add 1 + -10'); |
| 67 | |
| 68 | ############################################################################# |
| 69 | # sub |
| 70 | |
| 71 | $a = Math::BigInt::Calc->_new("123"); |
| 72 | $b = Math::BigInt::Calc->_new("321"); |
| 73 | ($x, $xs) = Math::BigFloat::_e_sub($b,$a,'+','+'); |
| 74 | is (_str($x,$xs), '+198', 'sub two positive numbers'); |
| 75 | is (_str($b,''), '198', 'a modified'); |
| 76 | |
| 77 | ($x,$xs) = _sub (123,321,'+','-'); |
| 78 | is (_str($x,$xs), '+444', 'sub +x + -y'); |
| 79 | ($x,$xs) = _sub (123,321,'-','+'); |
| 80 | is (_str($x,$xs), '-444', 'sub -x + +y'); |
| 81 | |
| 82 | sub _add |
| 83 | { |
| 84 | my ($a,$b,$as,$bs) = @_; |
| 85 | |
| 86 | my $aa = Math::BigInt::Calc->_new($a); |
| 87 | my $bb = Math::BigInt::Calc->_new($b); |
| 88 | my ($x, $xs) = Math::BigFloat::_e_add($aa,$bb,$as,$bs); |
| 89 | is (Math::BigInt::Calc->_str($x), Math::BigInt::Calc->_str($aa), |
| 90 | 'param0 modified'); |
| 91 | ($x,$xs); |
| 92 | } |
| 93 | |
| 94 | sub _sub |
| 95 | { |
| 96 | my ($a,$b,$as,$bs) = @_; |
| 97 | |
| 98 | my $aa = Math::BigInt::Calc->_new($a); |
| 99 | my $bb = Math::BigInt::Calc->_new($b); |
| 100 | my ($x, $xs) = Math::BigFloat::_e_sub($aa,$bb,$as,$bs); |
| 101 | is (Math::BigInt::Calc->_str($x), Math::BigInt::Calc->_str($aa), |
| 102 | 'param0 modified'); |
| 103 | ($x,$xs); |
| 104 | } |
| 105 | |
| 106 | sub _str |
| 107 | { |
| 108 | my ($x,$s) = @_; |
| 109 | |
| 110 | $s . Math::BigInt::Calc->_str($x); |
| 111 | } |
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