1 /* origin: FreeBSD /usr/src/lib/msun/src/math_private.h */
3 * ====================================================
4 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
6 * Developed at SunPro, a Sun Microsystems, Inc. business.
7 * Permission to use, copy, modify, and distribute this
8 * software is freely granted, provided that this notice
10 * ====================================================
35 /* Get two 32 bit ints from a double. */
36 #define EXTRACT_WORDS(hi,lo,d) \
40 (hi) = __u.bits >> 32; \
41 (lo) = (uint32_t)__u.bits; \
44 /* Get a 64 bit int from a double. */
45 #define EXTRACT_WORD64(i,d) \
52 /* Get the more significant 32 bit int from a double. */
53 #define GET_HIGH_WORD(i,d) \
57 (i) = __u.bits >> 32; \
60 /* Get the less significant 32 bit int from a double. */
61 #define GET_LOW_WORD(i,d) \
65 (i) = (uint32_t)__u.bits; \
68 /* Set a double from two 32 bit ints. */
69 #define INSERT_WORDS(d,hi,lo) \
72 __u.bits = ((uint64_t)(hi) << 32) | (uint32_t)(lo); \
76 /* Set a double from a 64 bit int. */
77 #define INSERT_WORD64(d,i) \
84 /* Set the more significant 32 bits of a double from an int. */
85 #define SET_HIGH_WORD(d,hi) \
89 __u.bits &= 0xffffffff; \
90 __u.bits |= (uint64_t)(hi) << 32; \
94 /* Set the less significant 32 bits of a double from an int. */
95 #define SET_LOW_WORD(d,lo) \
99 __u.bits &= 0xffffffff00000000ull; \
100 __u.bits |= (uint32_t)(lo); \
104 /* Get a 32 bit int from a float. */
105 #define GET_FLOAT_WORD(i,d) \
112 /* Set a float from a 32 bit int. */
113 #define SET_FLOAT_WORD(d,i) \
120 /* fdlibm kernel functions */
122 int __rem_pio2_large(double*,double*,int,int,int);
124 int __rem_pio2(double,double*);
125 double __sin(double,double,int);
126 double __cos(double,double);
127 double __tan(double,double,int);
128 double __expo2(double);
129 double complex __ldexp_cexp(double complex,int);
131 int __rem_pio2f(float,double*);
132 float __sindf(double);
133 float __cosdf(double);
134 float __tandf(double,int);
135 float __expo2f(float);
136 float complex __ldexp_cexpf(float complex,int);
138 int __rem_pio2l(long double, long double *);
139 long double __sinl(long double, long double, int);
140 long double __cosl(long double, long double);
141 long double __tanl(long double, long double, int);
143 /* polynomial evaluation */
144 long double __polevll(long double, const long double *, int);
145 long double __p1evll(long double, const long double *, int);
147 // FIXME: not needed when -fexcess-precision=standard is supported (>=gcc4.5)
149 * Attempt to get strict C99 semantics for assignment with non-C99 compilers.
152 #define STRICT_ASSIGN(type, lval, rval) do { \
153 volatile type __v = (rval); \
157 #define STRICT_ASSIGN(type, lval, rval) ((lval) = (type)(rval))
172 long double complex z;
176 /* x + y*I is not supported properly by gcc */
177 #define cpack(x,y) ((union dcomplex){.a={(x),(y)}}.z)
178 #define cpackf(x,y) ((union fcomplex){.a={(x),(y)}}.z)
179 #define cpackl(x,y) ((union lcomplex){.a={(x),(y)}}.z)