diff options
Diffstat (limited to 'patches/gmp/4.2.4/120-perfpow.patch')
| -rw-r--r-- | patches/gmp/4.2.4/120-perfpow.patch | 149 |
1 files changed, 0 insertions, 149 deletions
diff --git a/patches/gmp/4.2.4/120-perfpow.patch b/patches/gmp/4.2.4/120-perfpow.patch deleted file mode 100644 index f062b222..00000000 --- a/patches/gmp/4.2.4/120-perfpow.patch +++ /dev/null @@ -1,149 +0,0 @@ -Original patch from: perfpow.c.diff - --= BEGIN original header =- -Copyright 1998, 1999, 2000, 2001, 2005, 2008 Free Software Foundation, Inc. - -This file is part of the GNU MP Library. - -The GNU MP Library is free software; you can redistribute it and/or modify -it under the terms of the GNU Lesser General Public License as published by -the Free Software Foundation; either version 3 of the License, or (at your -option) any later version. - -The GNU MP Library is distributed in the hope that it will be useful, but -WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public -License for more details. - -You should have received a copy of the GNU Lesser General Public License -along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. - --= END original header =- - -diff -durN gmp-4.2.4.orig/mpz/perfpow.c gmp-4.2.4/mpz/perfpow.c ---- gmp-4.2.4.orig/mpz/perfpow.c 2007-08-30 20:31:41.000000000 +0200 -+++ gmp-4.2.4/mpz/perfpow.c 2009-03-08 18:36:16.000000000 +0100 -@@ -1,7 +1,7 @@ - /* mpz_perfect_power_p(arg) -- Return non-zero if ARG is a perfect power, - zero otherwise. - --Copyright 1998, 1999, 2000, 2001, 2005 Free Software Foundation, Inc. -+Copyright 1998, 1999, 2000, 2001, 2005, 2008 Free Software Foundation, Inc. - - This file is part of the GNU MP Library. - -@@ -59,6 +59,8 @@ - #define SMALLEST_OMITTED_PRIME 1009 - - -+#define POW2P(a) (((a) & ((a) - 1)) == 0) -+ - int - mpz_perfect_power_p (mpz_srcptr u) - { -@@ -72,16 +74,13 @@ - mp_size_t usize = SIZ (u); - TMP_DECL; - -- if (usize == 0) -- return 1; /* consider 0 a perfect power */ -+ if (mpz_cmpabs_ui (u, 1) <= 0) -+ return 1; /* -1, 0, and +1 are perfect powers */ - - n2 = mpz_scan1 (u, 0); - if (n2 == 1) - return 0; /* 2 divides exactly once. */ - -- if (n2 != 0 && (n2 & 1) == 0 && usize < 0) -- return 0; /* 2 has even multiplicity with negative U */ -- - TMP_MARK; - - uns = ABS (usize) - n2 / BITS_PER_MP_LIMB; -@@ -89,6 +88,14 @@ - MPZ_TMP_INIT (u2, uns); - - mpz_tdiv_q_2exp (u2, u, n2); -+ mpz_abs (u2, u2); -+ -+ if (mpz_cmp_ui (u2, 1) == 0) -+ { -+ TMP_FREE; -+ /* factoring completed; consistent power */ -+ return ! (usize < 0 && POW2P(n2)); -+ } - - if (isprime (n2)) - goto n2prime; -@@ -97,6 +104,9 @@ - { - prime = primes[i]; - -+ if (mpz_cmp_ui (u2, prime) < 0) -+ break; -+ - if (mpz_divisible_ui_p (u2, prime)) /* divisible by this prime? */ - { - rem = mpz_tdiv_q_ui (q, u2, prime * prime); -@@ -115,12 +125,6 @@ - n++; - } - -- if ((n & 1) == 0 && usize < 0) -- { -- TMP_FREE; -- return 0; /* even multiplicity with negative U, reject */ -- } -- - n2 = gcd (n2, n); - if (n2 == 1) - { -@@ -128,10 +132,11 @@ - return 0; /* we have multiplicity 1 of some factor */ - } - -- if (mpz_cmpabs_ui (u2, 1) == 0) -+ if (mpz_cmp_ui (u2, 1) == 0) - { - TMP_FREE; -- return 1; /* factoring completed; consistent power */ -+ /* factoring completed; consistent power */ -+ return ! (usize < 0 && POW2P(n2)); - } - - /* As soon as n2 becomes a prime number, stop factoring. -@@ -169,6 +174,10 @@ - else - { - unsigned long int nth; -+ -+ if (usize < 0 && POW2P(n2)) -+ return 0; -+ - /* We found some factors above. We just need to consider values of n - that divides n2. */ - for (nth = 2; nth <= n2; nth++) -@@ -184,8 +193,11 @@ - exact = mpz_root (q, u2, nth); - if (exact) - { -- TMP_FREE; -- return 1; -+ if (! (usize < 0 && POW2P(nth))) -+ { -+ TMP_FREE; -+ return 1; -+ } - } - if (mpz_cmp_ui (q, SMALLEST_OMITTED_PRIME) < 0) - { -@@ -199,6 +211,9 @@ - } - - n2prime: -+ if (usize < 0 && POW2P(n2)) -+ return 0; -+ - exact = mpz_root (NULL, u2, n2); - TMP_FREE; - return exact; |