Move Math::BigRat from ext/ to cpan/

[perl5.git] / cpan / Math-BigRat / t / Math / BigRat / Test.pm

diff --git a/cpan/Math-BigRat/t/Math/BigRat/Test.pm b/cpan/Math-BigRat/t/Math/BigRat/Test.pm
new file mode 100644 (file)
index 0000000..630a843
--- /dev/null
+++ b/cpan/Math-BigRat/t/Math/BigRat/Test.pm
@@ -0,0 +1,122 @@
+package Math::BigRat::Test;
+
+require 5.005_02;
+use strict;
+
+use Exporter;
+use Math::BigRat;
+use Math::BigFloat;
+use vars qw($VERSION @ISA 
+            $accuracy $precision $round_mode $div_scale);
+
+@ISA = qw(Math::BigRat Exporter);
+$VERSION = 0.04;
+
+use overload;          # inherit overload from BigRat
+
+# Globals
+$accuracy = $precision = undef;
+$round_mode = 'even';
+$div_scale = 40;
+
+my $class = 'Math::BigRat::Test';
+
+#ub 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];
+#        # Store the floating point value
+#        my $self = Math::BigFloat->new($value,$a,$p,$round_mode);
+#        bless $self, $class;
+#        $self->{'_custom'} = 1; # make sure this never goes away
+#        return $self;
+#}
+
+BEGIN 
+  {
+  *fstr = \&bstr;
+  *fsstr = \&bsstr;
+  *objectify = \&Math::BigInt::objectify;
+  *AUTOLOAD = \&Math::BigRat::AUTOLOAD;
+  no strict 'refs';
+  foreach my $method ( qw/ div acmp floor ceil root sqrt log fac modpow modinv/)
+    {
+    *{'b' . $method} = \&{'Math::BigRat::b' . $method};
+    }
+  }
+
+sub fround
+  {
+  my ($x,$a) = @_;
+
+  #print "$a $accuracy $precision $round_mode\n";
+  Math::BigFloat->round_mode($round_mode);
+  Math::BigFloat->accuracy($a || $accuracy);
+  Math::BigFloat->precision(undef);
+  my $y = Math::BigFloat->new($x->bsstr(),undef,undef);
+  $class->new($y->fround($a));
+  }
+
+sub ffround
+  {
+  my ($x,$p) = @_;
+
+  Math::BigFloat->round_mode($round_mode);
+  Math::BigFloat->accuracy(undef);
+  Math::BigFloat->precision($p || $precision);
+  my $y = Math::BigFloat->new($x->bsstr(),undef,undef);
+  $class->new($y->ffround($p));
+  }
+
+sub bstr
+  {
+  # calculate a BigFloat compatible string output
+  my ($x) = @_;
+
+  $x = $class->new($x) unless ref $x;
+
+  if ($x->{sign} !~ /^[+-]$/)           # inf, NaN etc
+    {
+    my $s = $x->{sign}; $s =~ s/^\+//;  # +inf => inf
+    return $s;
+    }
+
+  my $s = ''; $s = $x->{sign} if $x->{sign} ne '+';     # +3 vs 3
+
+#  print " bstr \$x ", $accuracy || $x->{_a} || 'notset', " ", $precision || $x->{_p} || 'notset', "\n";
+  return $s.$x->{_n} if $x->{_d}->is_one(); 
+  my $output = Math::BigFloat->new($x->{_n})->bdiv($x->{_d});
+  local $Math::BigFloat::accuracy = $accuracy || $x->{_a};
+  local $Math::BigFloat::precision = $precision || $x->{_p};
+  $s.$output->bstr();
+  }
+
+sub numify
+  {
+  $_[0]->bsstr();
+  }
+
+sub bsstr
+  {
+  # calculate a BigFloat compatible string output
+  my ($x) = @_;
+
+  $x = $class->new($x) unless ref $x;
+
+  if ($x->{sign} !~ /^[+-]$/)           # inf, NaN etc
+    {
+    my $s = $x->{sign}; $s =~ s/^\+//;  # +inf => inf
+    return $s;
+    }
+
+  my $s = ''; $s = $x->{sign} if $x->{sign} ne '+';     # +3 vs 3
+
+  my $output = Math::BigFloat->new($x->{_n})->bdiv($x->{_d});
+  return $s.$output->bsstr();
+  }
+
+1;