diff options
Diffstat (limited to 'include/ruby/ruby.h')
| -rw-r--r-- | include/ruby/ruby.h | 17 |
1 files changed, 5 insertions, 12 deletions
diff --git a/include/ruby/ruby.h b/include/ruby/ruby.h index 0cd88fb002..1cc9937acb 100644 --- a/include/ruby/ruby.h +++ b/include/ruby/ruby.h @@ -359,7 +359,11 @@ rb_fix2ulong(VALUE x) #define RB_FIXNUM_P(f) (((int)(SIGNED_VALUE)(f))&RUBY_FIXNUM_FLAG) #define RB_POSFIXABLE(f) ((f) < RUBY_FIXNUM_MAX+1) #define RB_NEGFIXABLE(f) ((f) >= RUBY_FIXNUM_MIN) -#define RB_FIXABLE(f) (RB_POSFIXABLE(f) && RB_NEGFIXABLE(f)) +#if defined HAVE_BUILTIN___BUILTIN_ADD_OVERFLOW +# define RB_FIXABLE(f) ({SIGNED_VALUE a=(f),c; !__builtin_add_overflow(a, a, &c);}) +#else +# define RB_FIXABLE(f) (RB_POSFIXABLE(f) && RB_NEGFIXABLE(f)) +#endif #define FIX2LONG(x) RB_FIX2LONG(x) #define FIX2ULONG(x) RB_FIX2ULONG(x) #define FIXNUM_P(f) RB_FIXNUM_P(f) @@ -1507,16 +1511,6 @@ rb_integer_type_p(VALUE obj) static inline int rb_long2fix_overflow(long l, VALUE *ptr) { -#ifdef HAVE_BUILTIN___BUILTIN_MUL_OVERFLOW - SIGNED_VALUE v; - if (__builtin_mul_overflow(l, 2, &v)) { - return 1; - } - else { - *ptr = ((VALUE)v) | RUBY_FIXNUM_FLAG; - return 0; - } -#else if (RB_FIXABLE(l)) { *ptr = RB_LONG2FIX(l); return 0; @@ -1524,7 +1518,6 @@ rb_long2fix_overflow(long l, VALUE *ptr) else { return 1; } -#endif } #if SIZEOF_INT < SIZEOF_LONG |