EXT_EXPBITS
#ifdef EXT_EXPBITS
#define LDBL_EXPBITS EXT_EXPBITS
uint16_t ext_exp:EXT_EXPBITS;
r >>= EXT_EXPBITS - 1; \
u.extu_exp &= __BITS(0, EXT_EXPBITS - 1); \
u.extu_exp |= (r) << (EXT_EXPBITS - 1); \
(((u)->extu_sign << EXT_EXPBITS) | (u)->extu_exp)
(u)->extu_sign = ((x) >> EXT_EXPBITS)
exp = (i >> (32 - 1 - EXT_EXPBITS)) & mask(EXT_EXPBITS);
uint32_t ext_exp:EXT_EXPBITS;
exp = (i >> (32 - 1 - EXT_EXPBITS)) & mask(EXT_EXPBITS);
uint32_t ext_exp:EXT_EXPBITS;
uint64_t ext_exp:EXT_EXPBITS;
uint64_t ext_exp:EXT_EXPBITS;