diff options
-rw-r--r-- | ChangeLog | 4 | ||||
-rw-r--r-- | bignum.c | 16 | ||||
-rw-r--r-- | version.h | 2 |
3 files changed, 20 insertions, 2 deletions
@@ -1,3 +1,7 @@ +Sun Jun 15 19:56:53 2008 Nobuyoshi Nakada <nobu@ruby-lang.org> + + * bignum.c (BIGZEROP): fix for longer Bignum zeros. [ruby-Bugs-17454] + Sun Jun 15 19:54:21 2008 Nobuyoshi Nakada <nobu@ruby-lang.org> * bignum.c (big2str_find_n1): check integer overflow. @@ -36,7 +36,21 @@ VALUE rb_cBignum; #define BIGLO(x) ((BDIGIT)((x) & (BIGRAD-1))) #define BDIGMAX ((BDIGIT)-1) -#define BIGZEROP(x) (RBIGNUM(x)->len == 0 || (RBIGNUM(x)->len == 1 && BDIGITS(x)[0] == 0)) +#define BIGZEROP(x) (RBIGNUM(x)->len == 0 || \ + (BDIGITS(x)[0] == 0 && \ + (RBIGNUM(x)->len == 1 || bigzero_p(x)))) + +static int bigzero_p(VALUE); +static int +bigzero_p(x) + VALUE x; +{ + long i; + for (i = 0; i < RBIGNUM(x)->len; ++i) { + if (BDIGITS(x)[i]) return 0; + } + return 1; +} static VALUE bignew_1(klass, len, sign) @@ -2,7 +2,7 @@ #define RUBY_RELEASE_DATE "2008-06-15" #define RUBY_VERSION_CODE 186 #define RUBY_RELEASE_CODE 20080615 -#define RUBY_PATCHLEVEL 184 +#define RUBY_PATCHLEVEL 185 #define RUBY_VERSION_MAJOR 1 #define RUBY_VERSION_MINOR 8 |