51 lines
1.6 KiB
Perl
51 lines
1.6 KiB
Perl
|
#!/usr/bin/perl -w
|
||
|
|
|
||
|
|
# Test broot function (and bsqrt() function, since it is used by broot()).
|
||
|
|
|
||
|
|
# It is too slow to be simple included in bigfltpm.inc, where it would get
|
||
|
|
# executed 3 times.
|
||
|
|
|
||
|
|
# But it is better to test the numerical functionality, instead of not testing
|
||
|
|
# it at all.
|
||
|
|
|
||
|
|
use strict;
|
||
|
|
use Test::More;
|
||
|
|
|
||
|
|
BEGIN {
|
||
|
|
plan skip_all => "requires Math::BigInt 1.997+" unless eval { require Math::BigInt && eval($Math::BigInt::VERSION) >= 1.997 };
|
||
|
|
plan tests => 1 + 4 * 2;
|
||
|
|
}
|
||
|
|
|
||
|
|
use Math::BigFloat only => 'LTM';
|
||
|
|
use Math::BigInt;
|
||
|
|
|
||
|
|
is (Math::BigInt->config()->{lib}, 'Math::BigInt::LTM', 'LTM loaded');
|
||
|
|
|
||
|
|
my $cl = "Math::BigFloat";
|
||
|
|
my $c = "Math::BigInt";
|
||
|
|
|
||
|
|
# 2 ** 240 =
|
||
|
|
# 1766847064778384329583297500742918515827483896875618958121606201292619776
|
||
|
|
|
||
|
|
# takes way too long
|
||
|
|
#test_broot ('2','240', 8, undef, '1073741824');
|
||
|
|
#test_broot ('2','240', 9, undef, '106528681.3099908308759836475139583940127');
|
||
|
|
#test_broot ('2','120', 9, undef, '10321.27324073880096577298929482324664787');
|
||
|
|
#test_broot ('2','120', 17, undef, '133.3268493632747279600707813049418888729');
|
||
|
|
|
||
|
|
test_broot ('2','120', 8, undef, '32768');
|
||
|
|
test_broot ('2','60', 8, undef, '181.0193359837561662466161566988413540569');
|
||
|
|
test_broot ('2','60', 9, undef, '101.5936673259647663841091609134277286651');
|
||
|
|
test_broot ('2','60', 17, undef, '11.54672461623965153271017217302844672562');
|
||
|
|
|
||
|
|
sub test_broot
|
||
|
|
{
|
||
|
|
my ($x,$n,$y,$scale,$result) = @_;
|
||
|
|
|
||
|
|
my $s = $scale || 'undef';
|
||
|
|
is ($cl->new($x)->bpow($n)->broot($y,$scale),$result, "Try: $cl $x->bpow($n)->broot($y,$s) == $result");
|
||
|
|
$result =~ s/\..*//;
|
||
|
|
is ($c->new($x)->bpow($n)->broot($y,$scale),$result, "Try: $c $x->bpow($n)->broot($y,$s) == $result");
|
||
|
|
}
|
||
|
|
|