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#ifndef _MATH_PRIVATE_H_
#error "Never use <math_ldbl.h> directly; include <math_private.h> instead."
#endif
/* A union which permits us to convert between a long double and
four 32 bit ints or two 64 bit ints. */
#if __FLOAT_WORD_ORDER == BIG_ENDIAN
typedef union
{
long double value;
struct
{
u_int64_t msw;
u_int64_t lsw;
} parts64;
struct
{
u_int32_t w0, w1, w2, w3;
} parts32;
} ieee854_long_double_shape_type;
#endif
#if __FLOAT_WORD_ORDER == LITTLE_ENDIAN
typedef union
{
long double value;
struct
{
u_int64_t lsw;
u_int64_t msw;
} parts64;
struct
{
u_int32_t w3, w2, w1, w0;
} parts32;
} ieee854_long_double_shape_type;
#endif
/* Get two 64 bit ints from a long double. */
#define GET_LDOUBLE_WORDS64(ix0,ix1,d) \
do { \
ieee854_long_double_shape_type qw_u; \
qw_u.value = (d); \
(ix0) = qw_u.parts64.msw; \
(ix1) = qw_u.parts64.lsw; \
} while (0)
/* Set a long double from two 64 bit ints. */
#define SET_LDOUBLE_WORDS64(d,ix0,ix1) \
do { \
ieee854_long_double_shape_type qw_u; \
qw_u.parts64.msw = (ix0); \
qw_u.parts64.lsw = (ix1); \
(d) = qw_u.value; \
} while (0)
/* Get the more significant 64 bits of a long double mantissa. */
#define GET_LDOUBLE_MSW64(v,d) \
do { \
ieee854_long_double_shape_type sh_u; \
sh_u.value = (d); \
(v) = sh_u.parts64.msw; \
} while (0)
/* Set the more significant 64 bits of a long double mantissa from an int. */
#define SET_LDOUBLE_MSW64(d,v) \
do { \
ieee854_long_double_shape_type sh_u; \
sh_u.value = (d); \
sh_u.parts64.msw = (v); \
(d) = sh_u.value; \
} while (0)
/* Get the least significant 64 bits of a long double mantissa. */
#define GET_LDOUBLE_LSW64(v,d) \
do { \
ieee854_long_double_shape_type sh_u; \
sh_u.value = (d); \
(v) = sh_u.parts64.lsw; \
} while (0)
/*
On a platform already supporting a binary128 long double,
_Float128 will alias to long double. This transformation
makes aliasing *l functions to *f128 trivial.
*/
#define _Float128 long double
#define L(x) x##L
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