/* Native implementation of soft float functions */#include <math.h>#if (defined(_BSD) && !defined(__APPLE__)) || defined(HOST_SOLARIS)#include <ieeefp.h>#define fabsf(f) ((float)fabs(f))#else#include <fenv.h>#endif/* * Define some C99-7.12.3 classification macros and *        some C99-.12.4 for Solaris systems OS less than 10, *        or Solaris 10 systems running GCC 3.x or less. *   Solaris 10 with GCC4 does not need these macros as they *   are defined in <iso/math_c99.h> with a compiler directive */#if defined(HOST_SOLARIS) && (( HOST_SOLARIS <= 9 ) || ((HOST_SOLARIS >= 10) && (__GNUC__ <= 4)))/* * C99 7.12.3 classification macros * and * C99 7.12.14 comparison macros * * ... do not work on Solaris 10 using GNU CC 3.4.x. * Try to workaround the missing / broken C99 math macros. */#define isnormal(x)             (fpclass(x) >= FP_NZERO)#define isgreater(x, y)         ((!unordered(x, y)) && ((x) > (y)))#define isgreaterequal(x, y)    ((!unordered(x, y)) && ((x) >= (y)))#define isless(x, y)            ((!unordered(x, y)) && ((x) < (y)))#define islessequal(x, y)       ((!unordered(x, y)) && ((x) <= (y)))#define isunordered(x,y)        unordered(x, y)#endif#if defined(__sun__) && !defined(NEED_LIBSUNMATH)#ifndef isnan# define isnan(x) \    (sizeof (x) == sizeof (long double) ? isnan_ld (x) \     : sizeof (x) == sizeof (double) ? isnan_d (x) \     : isnan_f (x))static inline int isnan_f  (float       x) { return x != x; }static inline int isnan_d  (double      x) { return x != x; }static inline int isnan_ld (long double x) { return x != x; }#endif#ifndef isinf# define isinf(x) \    (sizeof (x) == sizeof (long double) ? isinf_ld (x) \     : sizeof (x) == sizeof (double) ? isinf_d (x) \     : isinf_f (x))static inline int isinf_f  (float       x) { return isnan (x - x); }static inline int isinf_d  (double      x) { return isnan (x - x); }static inline int isinf_ld (long double x) { return isnan (x - x); }#endif#endiftypedef float float32;typedef double float64;#ifdef FLOATX80typedef long double floatx80;#endiftypedef union {    float32 f;    uint32_t i;} float32u;typedef union {    float64 f;    uint64_t i;} float64u;#ifdef FLOATX80typedef union {    floatx80 f;    struct {        uint64_t low;        uint16_t high;    } i;} floatx80u;#endif/*----------------------------------------------------------------------------| Software IEC/IEEE floating-point rounding mode.*----------------------------------------------------------------------------*/#if (defined(_BSD) && !defined(__APPLE__)) || defined(HOST_SOLARIS)enum {    float_round_nearest_even = FP_RN,    float_round_down         = FP_RM,    float_round_up           = FP_RP,    float_round_to_zero      = FP_RZ};#elif defined(__arm__)enum {    float_round_nearest_even = 0,    float_round_down         = 1,    float_round_up           = 2,    float_round_to_zero      = 3};#elseenum {    float_round_nearest_even = FE_TONEAREST,    float_round_down         = FE_DOWNWARD,    float_round_up           = FE_UPWARD,    float_round_to_zero      = FE_TOWARDZERO};#endiftypedef struct float_status {    signed char float_rounding_mode;#ifdef FLOATX80    signed char floatx80_rounding_precision;#endif} float_status;void set_float_rounding_mode(int val STATUS_PARAM);#ifdef FLOATX80void set_floatx80_rounding_precision(int val STATUS_PARAM);#endif/*----------------------------------------------------------------------------| Software IEC/IEEE integer-to-floating-point conversion routines.*----------------------------------------------------------------------------*/float32 int32_to_float32( int STATUS_PARAM);float32 uint32_to_float32( unsigned int STATUS_PARAM);float64 int32_to_float64( int STATUS_PARAM);float64 uint32_to_float64( unsigned int STATUS_PARAM);#ifdef FLOATX80floatx80 int32_to_floatx80( int STATUS_PARAM);#endif#ifdef FLOAT128float128 int32_to_float128( int STATUS_PARAM);#endiffloat32 int64_to_float32( int64_t STATUS_PARAM);float32 uint64_to_float32( uint64_t STATUS_PARAM);float64 int64_to_float64( int64_t STATUS_PARAM);float64 uint64_to_float64( uint64_t v STATUS_PARAM);#ifdef FLOATX80floatx80 int64_to_floatx80( int64_t STATUS_PARAM);#endif#ifdef FLOAT128float128 int64_to_float128( int64_t STATUS_PARAM);#endif/*----------------------------------------------------------------------------| Software IEC/IEEE single-precision conversion routines.*----------------------------------------------------------------------------*/int float32_to_int32( float32  STATUS_PARAM);int float32_to_int32_round_to_zero( float32  STATUS_PARAM);unsigned int float32_to_uint32( float32 a STATUS_PARAM);unsigned int float32_to_uint32_round_to_zero( float32 a STATUS_PARAM);int64_t float32_to_int64( float32  STATUS_PARAM);int64_t float32_to_int64_round_to_zero( float32  STATUS_PARAM);float64 float32_to_float64( float32  STATUS_PARAM);#ifdef FLOATX80floatx80 float32_to_floatx80( float32  STATUS_PARAM);#endif#ifdef FLOAT128float128 float32_to_float128( float32  STATUS_PARAM);#endif/*----------------------------------------------------------------------------| Software IEC/IEEE single-precision operations.*----------------------------------------------------------------------------*/float32 float32_round_to_int( float32  STATUS_PARAM);INLINE float32 float32_add( float32 a, float32 b STATUS_PARAM){    return a + b;}INLINE float32 float32_sub( float32 a, float32 b STATUS_PARAM){    return a - b;}INLINE float32 float32_mul( float32 a, float32 b STATUS_PARAM){    return a * b;}INLINE float32 float32_div( float32 a, float32 b STATUS_PARAM){    return a / b;}float32 float32_rem( float32, float32  STATUS_PARAM);float32 float32_sqrt( float32  STATUS_PARAM);INLINE int float32_eq( float32 a, float32 b STATUS_PARAM){    return a == b;}INLINE int float32_le( float32 a, float32 b STATUS_PARAM){    return a <= b;}INLINE int float32_lt( float32 a, float32 b STATUS_PARAM){    return a < b;}INLINE int float32_eq_signaling( float32 a, float32 b STATUS_PARAM){    return a <= b && a >= b;}INLINE int float32_le_quiet( float32 a, float32 b STATUS_PARAM){    return islessequal(a, b);}INLINE int float32_lt_quiet( float32 a, float32 b STATUS_PARAM){    return isless(a, b);}INLINE int float32_unordered( float32 a, float32 b STATUS_PARAM){    return isunordered(a, b);}int float32_compare( float32, float32 STATUS_PARAM );int float32_compare_quiet( float32, float32 STATUS_PARAM );int float32_is_signaling_nan( float32 );INLINE float32 float32_abs(float32 a){    return fabsf(a);}INLINE float32 float32_chs(float32 a){    return -a;}INLINE float32 float32_scalbn(float32 a, int n){    return scalbnf(a, n);}/*----------------------------------------------------------------------------| Software IEC/IEEE double-precision conversion routines.*----------------------------------------------------------------------------*/int float64_to_int32( float64 STATUS_PARAM );int float64_to_int32_round_to_zero( float64 STATUS_PARAM );unsigned int float64_to_uint32( float64 STATUS_PARAM );unsigned int float64_to_uint32_round_to_zero( float64 STATUS_PARAM );int64_t float64_to_int64( float64 STATUS_PARAM );int64_t float64_to_int64_round_to_zero( float64 STATUS_PARAM );uint64_t float64_to_uint64( float64 STATUS_PARAM );uint64_t float64_to_uint64_round_to_zero( float64 STATUS_PARAM );float32 float64_to_float32( float64 STATUS_PARAM );#ifdef FLOATX80floatx80 float64_to_floatx80( float64 STATUS_PARAM );#endif#ifdef FLOAT128float128 float64_to_float128( float64 STATUS_PARAM );#endif/*----------------------------------------------------------------------------| Software IEC/IEEE double-precision operations.*----------------------------------------------------------------------------*/float64 float64_round_to_int( float64 STATUS_PARAM );float64 float64_trunc_to_int( float64 STATUS_PARAM );INLINE float64 float64_add( float64 a, float64 b STATUS_PARAM){    return a + b;}INLINE float64 float64_sub( float64 a, float64 b STATUS_PARAM){    return a - b;}INLINE float64 float64_mul( float64 a, float64 b STATUS_PARAM){    return a * b;}INLINE float64 float64_div( float64 a, float64 b STATUS_PARAM){    return a / b;}float64 float64_rem( float64, float64 STATUS_PARAM );float64 float64_sqrt( float64 STATUS_PARAM );INLINE int float64_eq( float64 a, float64 b STATUS_PARAM){    return a == b;}INLINE int float64_le( float64 a, float64 b STATUS_PARAM){    return a <= b;}INLINE int float64_lt( float64 a, float64 b STATUS_PARAM){    return a < b;}INLINE int float64_eq_signaling( float64 a, float64 b STATUS_PARAM){    return a <= b && a >= b;}INLINE int float64_le_quiet( float64 a, float64 b STATUS_PARAM){    return islessequal(a, b);}INLINE int float64_lt_quiet( float64 a, float64 b STATUS_PARAM){    return isless(a, b);}INLINE int float64_unordered( float64 a, float64 b STATUS_PARAM){    return isunordered(a, b);}int float64_compare( float64, float64 STATUS_PARAM );int float64_compare_quiet( float64, float64 STATUS_PARAM );int float64_is_signaling_nan( float64 );int float64_is_nan( float64 );INLINE float64 float64_abs(float64 a){    return fabs(a);}INLINE float64 float64_chs(float64 a){    return -a;}INLINE float64 float64_scalbn(float64 a, int n){    return scalbn(a, n);}#ifdef FLOATX80/*----------------------------------------------------------------------------| Software IEC/IEEE extended double-precision conversion routines.*----------------------------------------------------------------------------*/int floatx80_to_int32( floatx80 STATUS_PARAM );int floatx80_to_int32_round_to_zero( floatx80 STATUS_PARAM );int64_t floatx80_to_int64( floatx80 STATUS_PARAM);int64_t floatx80_to_int64_round_to_zero( floatx80 STATUS_PARAM);float32 floatx80_to_float32( floatx80 STATUS_PARAM );float64 floatx80_to_float64( floatx80 STATUS_PARAM );#ifdef FLOAT128float128 floatx80_to_float128( floatx80 STATUS_PARAM );#endif/*----------------------------------------------------------------------------| Software IEC/IEEE extended double-precision operations.*----------------------------------------------------------------------------*/floatx80 floatx80_round_to_int( floatx80 STATUS_PARAM );INLINE floatx80 floatx80_add( floatx80 a, floatx80 b STATUS_PARAM){    return a + b;}INLINE floatx80 floatx80_sub( floatx80 a, floatx80 b STATUS_PARAM){    return a - b;}INLINE floatx80 floatx80_mul( floatx80 a, floatx80 b STATUS_PARAM){    return a * b;}INLINE floatx80 floatx80_div( floatx80 a, floatx80 b STATUS_PARAM){    return a / b;}floatx80 floatx80_rem( floatx80, floatx80 STATUS_PARAM );floatx80 floatx80_sqrt( floatx80 STATUS_PARAM );INLINE int floatx80_eq( floatx80 a, floatx80 b STATUS_PARAM){    return a == b;}INLINE int floatx80_le( floatx80 a, floatx80 b STATUS_PARAM){    return a <= b;}INLINE int floatx80_lt( floatx80 a, floatx80 b STATUS_PARAM){    return a < b;}INLINE int floatx80_eq_signaling( floatx80 a, floatx80 b STATUS_PARAM){    return a <= b && a >= b;}INLINE int floatx80_le_quiet( floatx80 a, floatx80 b STATUS_PARAM){    return islessequal(a, b);}INLINE int floatx80_lt_quiet( floatx80 a, floatx80 b STATUS_PARAM){    return isless(a, b);}INLINE int floatx80_unordered( floatx80 a, floatx80 b STATUS_PARAM){    return isunordered(a, b);}int floatx80_compare( floatx80, floatx80 STATUS_PARAM );int floatx80_compare_quiet( floatx80, floatx80 STATUS_PARAM );int floatx80_is_signaling_nan( floatx80 );INLINE floatx80 floatx80_abs(floatx80 a){    return fabsl(a);}INLINE floatx80 floatx80_chs(floatx80 a){    return -a;}INLINE floatx80 floatx80_scalbn(floatx80 a, int n){    return scalbnl(a, n);}#endif