[libmath-prime-util-perl] 20/54: Merge with master

[Partha P. Mukherjee]

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ppm-guest pushed a commit to annotated tag v0.38
in repository libmath-prime-util-perl.

commit fee1203ec515a51117943ec242ba0cea2831e05e
Merge: d29c977 382d4e2
Author: Dana Jacobsen <dana at acm.org>
Date:   Tue Feb 4 12:28:05 2014 -0800

    Merge with master

 lib/Math/Prime/Util/PP.pm | 3 +--
 util.c                    | 1 +
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --cc lib/Math/Prime/Util/PP.pm
index a6ec6f2,eb6fd5b..35ae158
--- a/lib/Math/Prime/Util/PP.pm
+++ b/lib/Math/Prime/Util/PP.pm
@@@ -1429,13 -1429,8 +1429,12 @@@ sub _gcd_ui 
  
  sub is_power {
    my ($n, $a) = @_;
-   return 0 if $n <= 3 || $n != int($n);
+   return 0 if $n <= 3;
 -  return !(is_power($n) % $a) if defined $a && $a != 0;
 +  if (defined $a && $a != 0) {
 +    return _is_perfect_square($n) if $a == 2;
 +    $n = Math::BigInt->new("$n") unless ref($n) eq 'Math::BigInt';
 +    return $n->copy->broot($a)->bint->bpow($a) == $n;
 +  }
-   #return 2 if _is_perfect_square($n);
    $n = Math::BigInt->new("$n") unless ref($n) eq 'Math::BigInt';
    my $e = 2;
    while (1) {

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