#include <float.h>
#include <math.h>
#include <complex.h>
-
-#include "longdbl.h"
-
-#include "libc.h"
-
-union fshape {
- float value;
- uint32_t bits;
+#include <endian.h>
+
+#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
+#elif LDBL_MANT_DIG == 64 && LDBL_MAX_EXP == 16384 && __BYTE_ORDER == __LITTLE_ENDIAN
+union ldshape {
+ long double f;
+ struct {
+ uint64_t m;
+ uint16_t se;
+ } i;
};
-
-union dshape {
- double value;
- uint64_t bits;
+#elif LDBL_MANT_DIG == 113 && LDBL_MAX_EXP == 16384 && __BYTE_ORDER == __LITTLE_ENDIAN
+union ldshape {
+ long double f;
+ struct {
+ uint64_t lo;
+ uint32_t mid;
+ uint16_t top;
+ uint16_t se;
+ } i;
+ struct {
+ uint64_t lo;
+ uint64_t hi;
+ } i2;
};
+#elif LDBL_MANT_DIG == 113 && LDBL_MAX_EXP == 16384 && __BYTE_ORDER == __BIG_ENDIAN
+union ldshape {
+ long double f;
+ struct {
+ uint16_t se;
+ uint16_t top;
+ uint32_t mid;
+ uint64_t lo;
+ } i;
+ struct {
+ uint64_t hi;
+ uint64_t lo;
+ } i2;
+};
+#else
+#error Unsupported long double representation
+#endif
-/* Get two 32 bit ints from a double. */
-#define EXTRACT_WORDS(hi,lo,d) \
-do { \
- union dshape __u; \
- __u.value = (d); \
- (hi) = __u.bits >> 32; \
- (lo) = (uint32_t)__u.bits; \
-} while (0)
+#define FORCE_EVAL(x) do { \
+ if (sizeof(x) == sizeof(float)) { \
+ volatile float __x; \
+ __x = (x); \
+ } else if (sizeof(x) == sizeof(double)) { \
+ volatile double __x; \
+ __x = (x); \
+ } else { \
+ volatile long double __x; \
+ __x = (x); \
+ } \
+} while(0)
-/* Get a 64 bit int from a double. */
-#define EXTRACT_WORD64(i,d) \
-do { \
- union dshape __u; \
- __u.value = (d); \
- (i) = __u.bits; \
+/* Get two 32 bit ints from a double. */
+#define EXTRACT_WORDS(hi,lo,d) \
+do { \
+ union {double f; uint64_t i;} __u; \
+ __u.f = (d); \
+ (hi) = __u.i >> 32; \
+ (lo) = (uint32_t)__u.i; \
} while (0)
/* Get the more significant 32 bit int from a double. */
-#define GET_HIGH_WORD(i,d) \
-do { \
- union dshape __u; \
- __u.value = (d); \
- (i) = __u.bits >> 32; \
+#define GET_HIGH_WORD(hi,d) \
+do { \
+ union {double f; uint64_t i;} __u; \
+ __u.f = (d); \
+ (hi) = __u.i >> 32; \
} while (0)
/* Get the less significant 32 bit int from a double. */
-#define GET_LOW_WORD(i,d) \
-do { \
- union dshape __u; \
- __u.value = (d); \
- (i) = (uint32_t)__u.bits; \
+#define GET_LOW_WORD(lo,d) \
+do { \
+ union {double f; uint64_t i;} __u; \
+ __u.f = (d); \
+ (lo) = (uint32_t)__u.i; \
} while (0)
/* Set a double from two 32 bit ints. */
-#define INSERT_WORDS(d,hi,lo) \
-do { \
- union dshape __u; \
- __u.bits = ((uint64_t)(hi) << 32) | (uint32_t)(lo); \
- (d) = __u.value; \
-} while (0)
-
-/* Set a double from a 64 bit int. */
-#define INSERT_WORD64(d,i) \
-do { \
- union dshape __u; \
- __u.bits = (i); \
- (d) = __u.value; \
+#define INSERT_WORDS(d,hi,lo) \
+do { \
+ union {double f; uint64_t i;} __u; \
+ __u.i = ((uint64_t)(hi)<<32) | (uint32_t)(lo); \
+ (d) = __u.f; \
} while (0)
/* Set the more significant 32 bits of a double from an int. */
-#define SET_HIGH_WORD(d,hi) \
-do { \
- union dshape __u; \
- __u.value = (d); \
- __u.bits &= 0xffffffff; \
- __u.bits |= (uint64_t)(hi) << 32; \
- (d) = __u.value; \
+#define SET_HIGH_WORD(d,hi) \
+do { \
+ union {double f; uint64_t i;} __u; \
+ __u.f = (d); \
+ __u.i &= 0xffffffff; \
+ __u.i |= (uint64_t)(hi) << 32; \
+ (d) = __u.f; \
} while (0)
/* Set the less significant 32 bits of a double from an int. */
-#define SET_LOW_WORD(d,lo) \
-do { \
- union dshape __u; \
- __u.value = (d); \
- __u.bits &= 0xffffffff00000000ull; \
- __u.bits |= (uint32_t)(lo); \
- (d) = __u.value; \
+#define SET_LOW_WORD(d,lo) \
+do { \
+ union {double f; uint64_t i;} __u; \
+ __u.f = (d); \
+ __u.i &= 0xffffffff00000000ull; \
+ __u.i |= (uint32_t)(lo); \
+ (d) = __u.f; \
} while (0)
/* Get a 32 bit int from a float. */
-#define GET_FLOAT_WORD(i,d) \
-do { \
- union fshape __u; \
- __u.value = (d); \
- (i) = __u.bits; \
+#define GET_FLOAT_WORD(w,d) \
+do { \
+ union {float f; uint32_t i;} __u; \
+ __u.f = (d); \
+ (w) = __u.i; \
} while (0)
/* Set a float from a 32 bit int. */
-#define SET_FLOAT_WORD(d,i) \
-do { \
- union fshape __u; \
- __u.bits = (i); \
- (d) = __u.value; \
+#define SET_FLOAT_WORD(d,w) \
+do { \
+ union {float f; uint32_t i;} __u; \
+ __u.i = (w); \
+ (d) = __u.f; \
} while (0)
+#undef __CMPLX
+#undef CMPLX
+#undef CMPLXF
+#undef CMPLXL
+
+#define __CMPLX(x, y, t) \
+ ((union { _Complex t __z; t __xy[2]; }){.__xy = {(x),(y)}}.__z)
+
+#define CMPLX(x, y) __CMPLX(x, y, double)
+#define CMPLXF(x, y) __CMPLX(x, y, float)
+#define CMPLXL(x, y) __CMPLX(x, y, long double)
+
/* fdlibm kernel functions */
int __rem_pio2_large(double*,double*,int,int,int);
long double __polevll(long double, const long double *, int);
long double __p1evll(long double, const long double *, int);
-// FIXME: not needed when -fexcess-precision=standard is supported (>=gcc4.5)
-/*
- * Attempt to get strict C99 semantics for assignment with non-C99 compilers.
- */
-#if 1
-#define STRICT_ASSIGN(type, lval, rval) do { \
- volatile type __v = (rval); \
- (lval) = __v; \
-} while (0)
-#else
-#define STRICT_ASSIGN(type, lval, rval) ((lval) = (type)(rval))
-#endif
-
-
-/* complex */
-
-union dcomplex {
- double complex z;
- double a[2];
-};
-union fcomplex {
- float complex z;
- float a[2];
-};
-union lcomplex {
- long double complex z;
- long double a[2];
-};
-
-// FIXME: move to complex.h ?
-#define creal(z) ((double)(z))
-#define crealf(z) ((float)(z))
-#define creall(z) ((long double)(z))
-#define cimag(z) ((union dcomplex){(z)}.a[1])
-#define cimagf(z) ((union fcomplex){(z)}.a[1])
-#define cimagl(z) ((union lcomplex){(z)}.a[1])
-
-/* x + y*I is not supported properly by gcc */
-#define cpack(x,y) ((union dcomplex){.a={(x),(y)}}.z)
-#define cpackf(x,y) ((union fcomplex){.a={(x),(y)}}.z)
-#define cpackl(x,y) ((union lcomplex){.a={(x),(y)}}.z)
-
#endif
projects / musl / blobdiff