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125 lines
5.2 KiB
C
125 lines
5.2 KiB
C
/* Private function declarations for libm.
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Copyright (C) 2011-2018 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#define __MSUF_X(x, suffix) x ## suffix
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#define __MSUF_S(...) __MSUF_X (__VA_ARGS__)
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#define __MSUF(x) __MSUF_S (x, _MSUF_)
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#define __MSUF_R_X(x, suffix) x ## suffix ## _r
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#define __MSUF_R_S(...) __MSUF_R_X (__VA_ARGS__)
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#define __MSUF_R(x) __MSUF_R_S (x, _MSUF_)
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/* IEEE style elementary functions. */
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extern _Mdouble_ __MSUF (__ieee754_acos) (_Mdouble_);
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extern _Mdouble_ __MSUF (__ieee754_acosh) (_Mdouble_);
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extern _Mdouble_ __MSUF (__ieee754_asin) (_Mdouble_);
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extern _Mdouble_ __MSUF (__ieee754_atan2) (_Mdouble_, _Mdouble_);
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extern _Mdouble_ __MSUF (__ieee754_atanh) (_Mdouble_);
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extern _Mdouble_ __MSUF (__ieee754_cosh) (_Mdouble_);
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extern _Mdouble_ __MSUF (__ieee754_exp) (_Mdouble_);
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extern _Mdouble_ __MSUF (__ieee754_exp10) (_Mdouble_);
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extern _Mdouble_ __MSUF (__ieee754_exp2) (_Mdouble_);
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extern _Mdouble_ __MSUF (__ieee754_fmod) (_Mdouble_, _Mdouble_);
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extern _Mdouble_ __MSUF (__ieee754_gamma) (_Mdouble_);
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extern _Mdouble_ __MSUF_R (__ieee754_gamma) (_Mdouble_, int *);
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extern _Mdouble_ __MSUF (__ieee754_hypot) (_Mdouble_, _Mdouble_);
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extern _Mdouble_ __MSUF (__ieee754_j0) (_Mdouble_);
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extern _Mdouble_ __MSUF (__ieee754_j1) (_Mdouble_);
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extern _Mdouble_ __MSUF (__ieee754_jn) (int, _Mdouble_);
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extern _Mdouble_ __MSUF (__ieee754_lgamma) (_Mdouble_);
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extern _Mdouble_ __MSUF_R (__ieee754_lgamma) (_Mdouble_, int *);
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extern _Mdouble_ __MSUF (__ieee754_log) (_Mdouble_);
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extern _Mdouble_ __MSUF (__ieee754_log10) (_Mdouble_);
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extern _Mdouble_ __MSUF (__ieee754_log2) (_Mdouble_);
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extern _Mdouble_ __MSUF (__ieee754_pow) (_Mdouble_, _Mdouble_);
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extern _Mdouble_ __MSUF (__ieee754_remainder) (_Mdouble_, _Mdouble_);
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extern _Mdouble_ __MSUF (__ieee754_sinh) (_Mdouble_);
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extern _Mdouble_ __MSUF (__ieee754_sqrt) (_Mdouble_);
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extern _Mdouble_ __MSUF (__ieee754_y0) (_Mdouble_);
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extern _Mdouble_ __MSUF (__ieee754_y1) (_Mdouble_);
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extern _Mdouble_ __MSUF (__ieee754_yn) (int, _Mdouble_);
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extern _Mdouble_ __MSUF (__ieee754_scalb) (_Mdouble_, _Mdouble_);
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extern int __MSUF (__ieee754_ilogb) (_Mdouble_);
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extern int32_t __MSUF (__ieee754_rem_pio2) (_Mdouble_, _Mdouble_ *);
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/* fdlibm kernel functions. */
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extern _Mdouble_ __MSUF (__kernel_sin) (_Mdouble_, _Mdouble_, int);
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extern _Mdouble_ __MSUF (__kernel_cos) (_Mdouble_, _Mdouble_);
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extern _Mdouble_ __MSUF (__kernel_tan) (_Mdouble_, _Mdouble_, int);
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#if defined __MATH_DECLARING_LONG_DOUBLE || defined __MATH_DECLARING_FLOATN
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extern void __MSUF (__kernel_sincos) (_Mdouble_, _Mdouble_,
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_Mdouble_ *, _Mdouble_ *, int);
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#endif
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#if !defined __MATH_DECLARING_LONG_DOUBLE || defined __MATH_DECLARING_FLOATN
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extern int __MSUF (__kernel_rem_pio2) (_Mdouble_ *, _Mdouble_ *, int,
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int, int, const int32_t *);
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#endif
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/* Internal functions. */
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#if !defined __MATH_DECLARING_LONG_DOUBLE || !defined NO_LONG_DOUBLE
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extern _Mdouble_ __MSUF (__copysign) (_Mdouble_ x, _Mdouble_ __y);
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extern inline _Mdouble_
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__MSUF (__copysign) (_Mdouble_ x, _Mdouble_ __y)
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{
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return __MSUF (__builtin_copysign) (x, __y);
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}
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#endif
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/* Return X^2 + Y^2 - 1, computed without large cancellation error.
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It is given that 1 > X >= Y >= epsilon / 2, and that X^2 + Y^2 >=
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0.5. */
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extern _Mdouble_ __MSUF (__x2y2m1) (_Mdouble_ x, _Mdouble_ y);
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/* Compute the product of X + X_EPS, X + X_EPS + 1, ..., X + X_EPS + N
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- 1, in the form R * (1 + *EPS) where the return value R is an
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approximation to the product and *EPS is set to indicate the
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approximate error in the return value. X is such that all the
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values X + 1, ..., X + N - 1 are exactly representable, and X_EPS /
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X is small enough that factors quadratic in it can be
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neglected. */
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extern _Mdouble_ __MSUF (__gamma_product) (_Mdouble_ x, _Mdouble_ x_eps,
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int n, _Mdouble_ *eps);
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/* Compute lgamma of a negative argument X, if it is in a range
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(depending on the floating-point format) for which expansion around
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zeros is used, setting *SIGNGAMP accordingly. */
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extern _Mdouble_ __MSUF (__lgamma_neg) (_Mdouble_ x, int *signgamp);
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/* Compute the product of 1 + (T / (X + X_EPS)), 1 + (T / (X + X_EPS +
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1)), ..., 1 + (T / (X + X_EPS + N - 1)), minus 1. X is such that
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all the values X + 1, ..., X + N - 1 are exactly representable, and
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X_EPS / X is small enough that factors quadratic in it can be
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neglected. */
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#if !defined __MATH_DECLARING_FLOAT
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extern _Mdouble_ __MSUF (__lgamma_product) (_Mdouble_ t, _Mdouble_ x,
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_Mdouble_ x_eps, int n);
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#endif
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#undef __MSUF_X
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#undef __MSUF_S
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#undef __MSUF
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#undef __MSUF_R_X
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#undef __MSUF_R_S
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#undef __MSUF_R
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