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* bignum.c (bigdivmod): wrong condition check for Bignum zero.

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* bignum.c (Init_Bignum): need to add Bignum#div.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_6@2941 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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matz 2002-10-07 07:16:12 +00:00
parent dfe4f687e1
commit 753450b7c4
2 changed files with 19 additions and 1 deletions
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13
ChangeLog
View file

@ -1,3 +1,9 @@
Mon Oct 7 15:36:42 2002 Yukihiro Matsumoto <matz@ruby-lang.org>
* bignum.c (bigdivmod): wrong condition check for Bignum zero.
* bignum.c (Init_Bignum): need to add Bignum#div.
Sun Oct 6 06:11:19 2002 Minero Aoki <aamine@loveruby.net>
* eval.c (rb_load): should not pass block to the loaded file.
@ -11,6 +17,13 @@ Fri Oct 4 14:23:08 2002 WATANABE Hirofumi <eban@ruby-lang.org>
* configure.in (RUBY_MINGW32): backport from 1.7.
Fri Oct 4 02:21:16 2002 Yukihiro Matsumoto <matz@ruby-lang.org>
* bignum.c (rb_big_rshift): num should be initialized by carry
bits if x is negative. (ruby-bugs-ja:PR#347)
* bignum.c (bigdivmod): len for bignum zero is 1, not 0.
Thu Oct 3 20:09:52 2002 Nobuyoshi Nakada <nobu.nokada@softhome.net>
* ext/tcltklib/tcltklib.c (invoke_queue_handler): make singleton

7
bignum.c
View file

@ -951,7 +951,8 @@ bigdivmod(x, y, divp, modp)
VALUE mod;
bigdivrem(x, y, divp, &mod);
if (RBIGNUM(x)->sign != RBIGNUM(y)->sign && RBIGNUM(mod)->len > 0) {
if (RBIGNUM(x)->sign != RBIGNUM(y)->sign &&
!(RBIGNUM(mod)->len == 1 && BDIGITS(mod)[0] == 0)) {
if (divp) *divp = bigadd(*divp, rb_int2big(1), 0);
if (modp) *modp = bigadd(mod, y, 1);
}
@ -1313,6 +1314,9 @@ rb_big_rshift(x, y)
xds = BDIGITS(x);
i = RBIGNUM(x)->len; j = i - s1;
z = bignew(j, RBIGNUM(x)->sign);
if (!RBIGNUM(x)->sign) {
num = ((BDIGIT_DBL)~0) << BITSPERDIG;
}
zds = BDIGITS(z);
while (i--, j--) {
num = (num | xds[i]) >> s2;
@ -1445,6 +1449,7 @@ Init_Bignum()
rb_define_method(rb_cBignum, "*", rb_big_mul, 1);
rb_define_method(rb_cBignum, "/", rb_big_div, 1);
rb_define_method(rb_cBignum, "%", rb_big_modulo, 1);
rb_define_method(rb_cBignum, "div", rb_big_div, 1);
rb_define_method(rb_cBignum, "divmod", rb_big_divmod, 1);
rb_define_method(rb_cBignum, "modulo", rb_big_modulo, 1);
rb_define_method(rb_cBignum, "remainder", rb_big_remainder, 1);