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comparison libquadmath/strtod/mpn2flt128.c @ 145:1830386684a0

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gcc-9.2.0
author anatofuz
date Thu, 13 Feb 2020 11:34:05 +0900
parents 561a7518be6b
children
comparison
equal deleted inserted replaced
131:84e7813d76e9 145:1830386684a0
32 ieee854_float128 u; 32 ieee854_float128 u;
33 33
34 u.ieee.negative = sign; 34 u.ieee.negative = sign;
35 u.ieee.exponent = expt + IEEE854_FLOAT128_BIAS; 35 u.ieee.exponent = expt + IEEE854_FLOAT128_BIAS;
36 #if BITS_PER_MP_LIMB == 32 36 #if BITS_PER_MP_LIMB == 32
37 u.ieee.mant_low = (((uint64_t) frac_ptr[1]) << 32) 37 u.ieee.mantissa3 = frac_ptr[0];
38 | (frac_ptr[0] & 0xffffffff); 38 u.ieee.mantissa2 = frac_ptr[1];
39 u.ieee.mant_high = (((uint64_t) frac_ptr[3] 39 u.ieee.mantissa1 = frac_ptr[2];
40 & (((mp_limb_t) 1 << (FLT128_MANT_DIG - 96)) - 1)) 40 u.ieee.mantissa0 = frac_ptr[3] & (((mp_limb_t) 1
41 << 32) | (frac_ptr[2] & 0xffffffff); 41 << (FLT128_MANT_DIG - 96)) - 1);
42 #elif BITS_PER_MP_LIMB == 64 42 #elif BITS_PER_MP_LIMB == 64
43 u.ieee.mant_low = frac_ptr[0]; 43 u.ieee.mantissa3 = frac_ptr[0] & (((mp_limb_t) 1 << 32) - 1);
44 u.ieee.mant_high = frac_ptr[1] 44 u.ieee.mantissa2 = frac_ptr[0] >> 32;
45 & (((mp_limb_t) 1 << (FLT128_MANT_DIG - 64)) - 1); 45 u.ieee.mantissa1 = frac_ptr[1] & (((mp_limb_t) 1 << 32) - 1);
46 u.ieee.mantissa0 = (frac_ptr[1] >> 32) & (((mp_limb_t) 1
47 << (FLT128_MANT_DIG - 96)) - 1);
46 #else 48 #else
47 #error "mp_limb size " BITS_PER_MP_LIMB "not accounted for" 49 #error "mp_limb size " BITS_PER_MP_LIMB "not accounted for"
48 #endif 50 #endif
49 51
50 return u.value; 52 return u.value;