/* Native implementation of soft float functions */
#include <math.h>
-#if (defined(_BSD) && !defined(__APPLE__)) || defined(HOST_SOLARIS)
+#if (defined(HOST_BSD) && !defined(__APPLE__)) || defined(HOST_SOLARIS)
#include <ieeefp.h>
#define fabsf(f) ((float)fabs(f))
#else
#include <fenv.h>
#endif
+#if defined(__OpenBSD__) || defined(__NetBSD__)
+#include <sys/param.h>
+#endif
+
/*
* Define some C99-7.12.3 classification macros and
* some C99-.12.4 for Solaris systems OS less than 10,
* 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) ))
+#if defined(HOST_SOLARIS) && (( HOST_SOLARIS <= 9 ) || ((HOST_SOLARIS >= 10) \
+ && (__GNUC__ < 4))) \
+ || (defined(__OpenBSD__) && (OpenBSD < 200811))
/*
* C99 7.12.3 classification macros
* and
* ... do not work on Solaris 10 using GNU CC 3.4.x.
* Try to workaround the missing / broken C99 math macros.
*/
+#if defined(__OpenBSD__)
+#define unordered(x, y) (isnan(x) || isnan(y))
+#endif
+
+#ifdef __NetBSD__
+#ifndef isgreater
+#define isgreater(x, y) __builtin_isgreater(x, y)
+#endif
+#ifndef isgreaterequal
+#define isgreaterequal(x, y) __builtin_isgreaterequal(x, y)
+#endif
+#ifndef isless
+#define isless(x, y) __builtin_isless(x, y)
+#endif
+#ifndef islessequal
+#define islessequal(x, y) __builtin_islessequal(x, y)
+#endif
+#ifndef isunordered
+#define isunordered(x, y) __builtin_isunordered(x, y)
+#endif
+#endif
+
#define isnormal(x) (fpclass(x) >= FP_NZERO)
#define isgreater(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
+#endif
+
typedef float float32;
typedef double float64;
#ifdef FLOATX80
/*----------------------------------------------------------------------------
| Software IEC/IEEE floating-point rounding mode.
*----------------------------------------------------------------------------*/
-#if (defined(_BSD) && !defined(__APPLE__)) || defined(HOST_SOLARIS)
+#if (defined(HOST_BSD) && !defined(__APPLE__)) || defined(HOST_SOLARIS)
+#if defined(__OpenBSD__)
+#define FE_RM FP_RM
+#define FE_RP FP_RP
+#define FE_RZ FP_RZ
+#endif
enum {
float_round_nearest_even = FP_RN,
float_round_down = FP_RM,
#endif
typedef struct float_status {
- signed char float_rounding_mode;
+ int float_rounding_mode;
#ifdef FLOATX80
- signed char floatx80_rounding_precision;
+ int floatx80_rounding_precision;
#endif
} float_status;
int float32_compare( float32, float32 STATUS_PARAM );
int float32_compare_quiet( float32, float32 STATUS_PARAM );
int float32_is_signaling_nan( float32 );
+int float32_is_nan( float32 );
INLINE float32 float32_abs(float32 a)
{
return -a;
}
+INLINE float32 float32_is_infinity(float32 a)
+{
+ return fpclassify(a) == FP_INFINITE;
+}
+
+INLINE float32 float32_is_neg(float32 a)
+{
+ float32u u;
+ u.f = a;
+ return u.i >> 31;
+}
+
+INLINE float32 float32_is_zero(float32 a)
+{
+ return fpclassify(a) == FP_ZERO;
+}
+
+INLINE float32 float32_scalbn(float32 a, int n)
+{
+ return scalbnf(a, n);
+}
+
/*----------------------------------------------------------------------------
| Software IEC/IEEE double-precision conversion routines.
*----------------------------------------------------------------------------*/
return -a;
}
+INLINE float64 float64_is_infinity(float64 a)
+{
+ return fpclassify(a) == FP_INFINITE;
+}
+
+INLINE float64 float64_is_neg(float64 a)
+{
+ float64u u;
+ u.f = a;
+ return u.i >> 63;
+}
+
+INLINE float64 float64_is_zero(float64 a)
+{
+ return fpclassify(a) == FP_ZERO;
+}
+
+INLINE float64 float64_scalbn(float64 a, int n)
+{
+ return scalbn(a, n);
+}
+
#ifdef FLOATX80
/*----------------------------------------------------------------------------
int floatx80_compare( floatx80, floatx80 STATUS_PARAM );
int floatx80_compare_quiet( floatx80, floatx80 STATUS_PARAM );
int floatx80_is_signaling_nan( floatx80 );
+int floatx80_is_nan( floatx80 );
INLINE floatx80 floatx80_abs(floatx80 a)
{
{
return -a;
}
+
+INLINE floatx80 floatx80_is_infinity(floatx80 a)
+{
+ return fpclassify(a) == FP_INFINITE;
+}
+
+INLINE floatx80 floatx80_is_neg(floatx80 a)
+{
+ floatx80u u;
+ u.f = a;
+ return u.i.high >> 15;
+}
+
+INLINE floatx80 floatx80_is_zero(floatx80 a)
+{
+ return fpclassify(a) == FP_ZERO;
+}
+
+INLINE floatx80 floatx80_scalbn(floatx80 a, int n)
+{
+ return scalbnl(a, n);
+}
+
#endif