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 * ====================================================
34 /* Get two 32 bit ints from a double. */
35 #define EXTRACT_WORDS(hi,lo,d) \
39 (hi) = __u.bits >> 32; \
40 (lo) = (uint32_t)__u.bits; \
43 /* Get a 64 bit int from a double. */
44 #define EXTRACT_WORD64(i,d) \
51 /* Get the more significant 32 bit int from a double. */
52 #define GET_HIGH_WORD(i,d) \
56 (i) = __u.bits >> 32; \
59 /* Get the less significant 32 bit int from a double. */
60 #define GET_LOW_WORD(i,d) \
64 (i) = (uint32_t)__u.bits; \
67 /* Set a double from two 32 bit ints. */
68 #define INSERT_WORDS(d,hi,lo) \
71 __u.bits = ((uint64_t)(hi) << 32) | (uint32_t)(lo); \
75 /* Set a double from a 64 bit int. */
76 #define INSERT_WORD64(d,i) \
83 /* Set the more significant 32 bits of a double from an int. */
84 #define SET_HIGH_WORD(d,hi) \
88 __u.bits &= 0xffffffff; \
89 __u.bits |= (uint64_t)(hi) << 32; \
93 /* Set the less significant 32 bits of a double from an int. */
94 #define SET_LOW_WORD(d,lo) \
98 __u.bits &= 0xffffffff00000000ull; \
99 __u.bits |= (uint32_t)(lo); \
103 /* Get a 32 bit int from a float. */
104 #define GET_FLOAT_WORD(i,d) \
111 /* Set a float from a 32 bit int. */
112 #define SET_FLOAT_WORD(d,i) \
119 /* fdlibm kernel functions */
121 int __rem_pio2_large(double*,double*,int,int,int);
123 int __rem_pio2(double,double*);
124 double __sin(double,double,int);
125 double __cos(double,double);
126 double __tan(double,double,int);
127 double __expo2(double);
128 double complex __ldexp_cexp(double complex,int);
130 int __rem_pio2f(float,double*);
131 float __sindf(double);
132 float __cosdf(double);
133 float __tandf(double,int);
134 float __expo2f(float);
135 float complex __ldexp_cexpf(float complex,int);
137 long double __sinl(long double, long double, int);
138 long double __cosl(long double, long double);
139 long double __tanl(long double, long double, int);
141 /* polynomial evaluation */
142 long double __polevll(long double, long double *, int);
143 long double __p1evll(long double, long double *, int);
145 // FIXME: not needed when -fexcess-precision=standard is supported (>=gcc4.5)
147 * Attempt to get strict C99 semantics for assignment with non-C99 compilers.
150 #define STRICT_ASSIGN(type, lval, rval) do { \
151 volatile type __v = (rval); \
155 #define STRICT_ASSIGN(type, lval, rval) ((lval) = (type)(rval))
170 long double complex z;
174 // FIXME: move to complex.h ?
175 #define creal(z) ((double)(z))
176 #define crealf(z) ((float)(z))
177 #define creall(z) ((long double)(z))
178 #define cimag(z) ((union dcomplex){(z)}.a[1])
179 #define cimagf(z) ((union fcomplex){(z)}.a[1])
180 #define cimagl(z) ((union lcomplex){(z)}.a[1])
182 /* x + y*I is not supported properly by gcc */
183 #define cpack(x,y) ((union dcomplex){.a={(x),(y)}}.z)
184 #define cpackf(x,y) ((union fcomplex){.a={(x),(y)}}.z)
185 #define cpackl(x,y) ((union lcomplex){.a={(x),(y)}}.z)