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* bignum.c (rb_big_pow): removed invariant variable. [ruby-dev:31236]

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@12802 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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nobu 2007-07-15 15:26:12 +00:00
parent 26b5fd1e7b
commit 7da059bddb
3 changed files with 10 additions and 18 deletions
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4
ChangeLog
View file

@ -1,3 +1,7 @@
Mon Jul 16 00:26:10 2007 Nobuyoshi Nakada <nobu@ruby-lang.org>
* bignum.c (rb_big_pow): removed invariant variable. [ruby-dev:31236]
Sun Jul 15 23:59:57 2007 Nobuyoshi Nakada <nobu@ruby-lang.org>
* bignum.c (rb_big_neg): SIGNED_VALUE isn't in 1.8.

18
bignum.c
View file

@ -1754,7 +1754,7 @@ rb_big_pow(x, y)
yy = FIX2LONG(y);
if (yy > 0) {
VALUE z = 0;
long mask, n = 1;
long mask;
if (RBIGNUM(x)->len * SIZEOF_BDIGITS * yy > 1024*1024) {
rb_warn("in a**b, b may be too big");
@ -1762,21 +1762,9 @@ rb_big_pow(x, y)
break;
}
for (mask = FIXNUM_MAX + 1; mask; mask >>= 1) {
if (!z) {
long n2 = n * n;
if (!POSFIXABLE(n2) || (n2 / n != n)) {
z = bigtrunc(bigsqr(rb_int2big(n)));
}
else {
n = n2;
}
}
else {
z = bigtrunc(bigsqr(z));
}
if (z) z = bigtrunc(bigsqr(z));
if (yy & mask) {
if (!z) z = rb_int2big(n);
z = bigtrunc(rb_big_mul0(z, x));
z = z ? bigtrunc(rb_big_mul0(z, x)) : x;
}
}
return bignorm(z);

6
version.h
View file

@ -1,7 +1,7 @@
#define RUBY_VERSION "1.8.6"
#define RUBY_RELEASE_DATE "2007-07-15"
#define RUBY_RELEASE_DATE "2007-07-16"
#define RUBY_VERSION_CODE 186
#define RUBY_RELEASE_CODE 20070715
#define RUBY_RELEASE_CODE 20070716
#define RUBY_PATCHLEVEL 5000
#define RUBY_VERSION_MAJOR 1
@ -9,7 +9,7 @@
#define RUBY_VERSION_TEENY 6
#define RUBY_RELEASE_YEAR 2007
#define RUBY_RELEASE_MONTH 7
#define RUBY_RELEASE_DAY 15
#define RUBY_RELEASE_DAY 16
#ifdef RUBY_EXTERN
RUBY_EXTERN const char ruby_version[];