diff options
Diffstat (limited to 'bignum.c')
-rw-r--r-- | bignum.c | 10 |
1 files changed, 8 insertions, 2 deletions
@@ -6765,9 +6765,15 @@ rb_big_even_p(VALUE num) unsigned long rb_ulong_isqrt(unsigned long); #if SIZEOF_BDIGIT*2 > SIZEOF_LONG BDIGIT rb_bdigit_dbl_isqrt(BDIGIT_DBL); +# ifdef ULL_TO_DOUBLE +# define BDIGIT_DBL_TO_DOUBLE(n) ULL_TO_DOUBLE(n) +# endif #else # define rb_bdigit_dbl_isqrt(x) (BDIGIT)rb_ulong_isqrt(x) #endif +#ifndef BDIGIT_DBL_TO_DOUBLE +# define BDIGIT_DBL_TO_DOUBLE(n) (double)(n) +#endif static BDIGIT * estimate_initial_sqrt(VALUE *xp, const size_t xn, const BDIGIT *nds, size_t len) @@ -6789,9 +6795,9 @@ estimate_initial_sqrt(VALUE *xp, const size_t xn, const BDIGIT *nds, size_t len) d <<= -rshift; d |= nds[len-dbl_per_bdig-1] >> (BITSPERDIG+rshift); } - f = sqrt((double)d); + f = sqrt(BDIGIT_DBL_TO_DOUBLE(d)); d = (BDIGIT_DBL)ceil(f); - if ((double)d == f) { + if (BDIGIT_DBL_TO_DOUBLE(d) == f) { if (lowbits || (lowbits = !bary_zero_p(nds, len-dbl_per_bdig))) ++d; } |