diff options
Diffstat (limited to 'rational.c')
-rw-r--r-- | rational.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/rational.c b/rational.c index f5eb2c3aea..d7966a1e7a 100644 --- a/rational.c +++ b/rational.c @@ -377,7 +377,19 @@ f_rational_new_bang2(VALUE klass, VALUE x, VALUE y) return nurat_s_new_internal(klass, x, y); } -#define f_unify_p(klass) rb_const_defined(klass, id_Unify) +#if RUBY_VERSION_CODE < 200 +#define CANON +#endif + +#ifdef CANON +static int canonicalization = 0; + +void +nurat_canonicalize(int f) +{ + canonicalization = f; +} +#endif inline static void nurat_int_check(VALUE num) @@ -421,7 +433,7 @@ nurat_s_canonicalize_internal(VALUE klass, VALUE num, VALUE den) den = f_idiv(den, gcd); #ifdef CANON - if (f_one_p(den) && f_unify_p(klass)) + if (f_one_p(den) && canonicalization) return num; #endif return nurat_s_new_internal(klass, num, den); @@ -441,7 +453,7 @@ nurat_s_canonicalize_internal_no_reduce(VALUE klass, VALUE num, VALUE den) } #ifdef CANON - if (f_one_p(den) && f_unify_p(klass)) + if (f_one_p(den) && canonicalization) return num; #endif return nurat_s_new_internal(klass, num, den); |