/* Prototype declarations for math functions; helper file for <math.h>.
- Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
+ Copyright (C) 1996-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
+ Lesser General Public License for more details.
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
/* NOTE: Because of the special way this file is used by <math.h>, this
file must NOT be protected from multiple inclusion as header files
NAME, to make token pasting work with -traditional. */
#ifndef _MATH_H
- #error "Never include <bits/mathcalls.h> directly; include <math.h> instead."
+# error "Never include <bits/mathcalls.h> directly; include <math.h> instead."
#endif
__MATHCALL (atan2,, (_Mdouble_ __y, _Mdouble_ __x));
/* Cosine of X. */
-__MATHCALL (cos,, (_Mdouble_ __x));
+__MATHCALL_VEC (cos,, (_Mdouble_ __x));
/* Sine of X. */
-__MATHCALL (sin,, (_Mdouble_ __x));
+__MATHCALL_VEC (sin,, (_Mdouble_ __x));
/* Tangent of X. */
__MATHCALL (tan,, (_Mdouble_ __x));
-#ifdef __USE_GNU
-/* Cosine and sine of X. */
-__MATHDECL (void,sincos,,
- (_Mdouble_ __x, _Mdouble_ *__sinx, _Mdouble_ *__cosx));
-#endif
-
/* Hyperbolic functions. */
/* Hyperbolic cosine of X. */
/* Hyperbolic tangent of X. */
__MATHCALL (tanh,, (_Mdouble_ __x));
-#if defined __USE_MISC || defined __USE_XOPEN_EXTENDED || defined __USE_ISOC99
+#ifdef __USE_GNU
+/* Cosine and sine of X. */
+__MATHDECL_VEC (void,sincos,,
+ (_Mdouble_ __x, _Mdouble_ *__sinx, _Mdouble_ *__cosx));
+#endif
+
+#if defined __USE_XOPEN_EXTENDED || defined __USE_ISOC99
/* Hyperbolic arc cosine of X. */
__MATHCALL (acosh,, (_Mdouble_ __x));
/* Hyperbolic arc sine of X. */
/* Exponential and logarithmic functions. */
/* Exponential function of X. */
-__MATHCALL (exp,, (_Mdouble_ __x));
-
-#ifdef __USE_GNU
-/* A function missing in all standards: compute exponent to base ten. */
-__MATHCALL (exp10,, (_Mdouble_ __x));
-/* Another name occasionally used. */
-__MATHCALL (pow10,, (_Mdouble_ __x));
-#endif
+__MATHCALL_VEC (exp,, (_Mdouble_ __x));
/* Break VALUE into a normalized fraction and an integral power of 2. */
__MATHCALL (frexp,, (_Mdouble_ __x, int *__exponent));
__MATHCALL (ldexp,, (_Mdouble_ __x, int __exponent));
/* Natural logarithm of X. */
-__MATHCALL (log,, (_Mdouble_ __x));
+__MATHCALL_VEC (log,, (_Mdouble_ __x));
/* Base-ten logarithm of X. */
__MATHCALL (log10,, (_Mdouble_ __x));
/* Break VALUE into integral and fractional parts. */
-__MATHCALL (modf,, (_Mdouble_ __x, _Mdouble_ *__iptr));
+__MATHCALL (modf,, (_Mdouble_ __x, _Mdouble_ *__iptr)) __nonnull ((2));
+
+#if __GLIBC_USE (IEC_60559_FUNCS_EXT)
+/* Compute exponent to base ten. */
+__MATHCALL (exp10,, (_Mdouble_ __x));
+#endif
-#if defined __USE_MISC || defined __USE_XOPEN_EXTENDED || defined __USE_ISOC99
+#if defined __USE_XOPEN_EXTENDED || defined __USE_ISOC99
/* Return exp(X) - 1. */
__MATHCALL (expm1,, (_Mdouble_ __x));
/* Power functions. */
/* Return X to the Y power. */
-__MATHCALL (pow,, (_Mdouble_ __x, _Mdouble_ __y));
+__MATHCALL_VEC (pow,, (_Mdouble_ __x, _Mdouble_ __y));
/* Return the square root of X. */
__MATHCALL (sqrt,, (_Mdouble_ __x));
-#if defined __USE_MISC || defined __USE_XOPEN || defined __USE_ISOC99
+#if defined __USE_XOPEN || defined __USE_ISOC99
/* Return `sqrt(X*X + Y*Y)'. */
__MATHCALL (hypot,, (_Mdouble_ __x, _Mdouble_ __y));
#endif
-#if defined __USE_MISC || defined __USE_XOPEN_EXTENDED || defined __USE_ISOC99
+#if defined __USE_XOPEN_EXTENDED || defined __USE_ISOC99
/* Return the cube root of X. */
__MATHCALL (cbrt,, (_Mdouble_ __x));
#endif
/* Nearest integer, absolute value, and remainder functions. */
/* Smallest integral value not less than X. */
-__MATHCALL (ceil,, (_Mdouble_ __x));
+__MATHCALLX (ceil,, (_Mdouble_ __x), (__const__));
/* Absolute value of X. */
__MATHCALLX (fabs,, (_Mdouble_ __x), (__const__));
/* Largest integer not greater than X. */
-__MATHCALL (floor,, (_Mdouble_ __x));
+__MATHCALLX (floor,, (_Mdouble_ __x), (__const__));
/* Floating-point modulo remainder of X/Y. */
__MATHCALL (fmod,, (_Mdouble_ __x, _Mdouble_ __y));
-
-/* Return 0 if VALUE is finite or NaN, +1 if it
- is +Infinity, -1 if it is -Infinity. */
-__MATHDECL_1 (int,__isinf,, (_Mdouble_ __value)) __attribute__ ((__const__));
-
-/* Return nonzero if VALUE is finite and not NaN. */
-__MATHDECL_1 (int,__finite,, (_Mdouble_ __value)) __attribute__ ((__const__));
-
#ifdef __USE_MISC
+# if ((!defined __cplusplus \
+ || __cplusplus < 201103L /* isinf conflicts with C++11. */ \
+ || __MATH_DECLARING_DOUBLE == 0)) /* isinff or isinfl don't. */ \
+ && !__MATH_DECLARING_FLOATN
/* Return 0 if VALUE is finite or NaN, +1 if it
is +Infinity, -1 if it is -Infinity. */
__MATHDECL_1 (int,isinf,, (_Mdouble_ __value)) __attribute__ ((__const__));
+# endif
+# if !__MATH_DECLARING_FLOATN
/* Return nonzero if VALUE is finite and not NaN. */
__MATHDECL_1 (int,finite,, (_Mdouble_ __value)) __attribute__ ((__const__));
-/* Deal with an infinite or NaN result.
- If ERROR is ERANGE, result is +Inf;
- if ERROR is - ERANGE, result is -Inf;
- otherwise result is NaN.
- This will set `errno' to either ERANGE or EDOM,
- and may return an infinity or NaN, or may do something else. */
-__MATHCALLX (infnan,, (int __error), (__const__));
-
/* Return the remainder of X/Y. */
__MATHCALL (drem,, (_Mdouble_ __x, _Mdouble_ __y));
/* Return the fractional part of X after dividing out `ilogb (X)'. */
__MATHCALL (significand,, (_Mdouble_ __x));
+# endif
+
#endif /* Use misc. */
-#if defined __USE_MISC || defined __USE_ISOC99
+#ifdef __USE_ISOC99
/* Return X with its signed changed to Y's. */
__MATHCALLX (copysign,, (_Mdouble_ __x, _Mdouble_ __y), (__const__));
#endif
#ifdef __USE_ISOC99
-/* Return representation of NaN for double type. */
-__MATHCALLX (nan,, (__const char *__tagb), (__const__));
+/* Return representation of qNaN for double type. */
+__MATHCALLX (nan,, (const char *__tagb), (__const__));
#endif
-/* Return nonzero if VALUE is not a number. */
-__MATHDECL_1 (int,__isnan,, (_Mdouble_ __value)) __attribute__ ((__const__));
-
-#if defined __USE_MISC || defined __USE_XOPEN
+#if defined __USE_MISC || (defined __USE_XOPEN && !defined __USE_XOPEN2K)
+# if ((!defined __cplusplus \
+ || __cplusplus < 201103L /* isnan conflicts with C++11. */ \
+ || __MATH_DECLARING_DOUBLE == 0)) /* isnanf or isnanl don't. */ \
+ && !__MATH_DECLARING_FLOATN
/* Return nonzero if VALUE is not a number. */
__MATHDECL_1 (int,isnan,, (_Mdouble_ __value)) __attribute__ ((__const__));
+# endif
+#endif
+#if defined __USE_MISC || (defined __USE_XOPEN && __MATH_DECLARING_DOUBLE)
/* Bessel functions. */
__MATHCALL (j0,, (_Mdouble_));
__MATHCALL (j1,, (_Mdouble_));
#endif
-#if defined __USE_MISC || defined __USE_XOPEN || defined __USE_ISOC99
+#if defined __USE_XOPEN || defined __USE_ISOC99
/* Error and gamma functions. */
__MATHCALL (erf,, (_Mdouble_));
__MATHCALL (erfc,, (_Mdouble_));
__MATHCALL (lgamma,, (_Mdouble_));
+#endif
+
+#ifdef __USE_ISOC99
+/* True gamma function. */
__MATHCALL (tgamma,, (_Mdouble_));
#endif
-#if defined __USE_MISC || defined __USE_XOPEN
+#if defined __USE_MISC || (defined __USE_XOPEN && !defined __USE_XOPEN2K)
+# if !__MATH_DECLARING_FLOATN
/* Obsolete alias for `lgamma'. */
__MATHCALL (gamma,, (_Mdouble_));
+# endif
#endif
#ifdef __USE_MISC
#endif
-#if defined __USE_MISC || defined __USE_XOPEN_EXTENDED || defined __USE_ISOC99
+#if defined __USE_XOPEN_EXTENDED || defined __USE_ISOC99
/* Return the integer nearest X in the direction of the
prevailing rounding mode. */
__MATHCALL (rint,, (_Mdouble_ __x));
/* Return X + epsilon if X < Y, X - epsilon if X > Y. */
-__MATHCALLX (nextafter,, (_Mdouble_ __x, _Mdouble_ __y), (__const__));
-# ifdef __USE_ISOC99
-__MATHCALLX (nexttoward,, (_Mdouble_ __x, long double __y), (__const__));
+__MATHCALL (nextafter,, (_Mdouble_ __x, _Mdouble_ __y));
+# if defined __USE_ISOC99 && !defined __LDBL_COMPAT && !__MATH_DECLARING_FLOATN
+__MATHCALL (nexttoward,, (_Mdouble_ __x, long double __y));
+# endif
+
+# if __GLIBC_USE (IEC_60559_BFP_EXT) || __MATH_DECLARING_FLOATN
+/* Return X - epsilon. */
+__MATHCALL (nextdown,, (_Mdouble_ __x));
+/* Return X + epsilon. */
+__MATHCALL (nextup,, (_Mdouble_ __x));
# endif
/* Return the remainder of integer divison X / Y with infinite precision. */
__MATHCALL (remainder,, (_Mdouble_ __x, _Mdouble_ __y));
-# if defined __USE_MISC || defined __USE_XOPEN_EXTENDED
-/* Return X times (2 to the Nth power). */
-__MATHCALL (scalb,, (_Mdouble_ __x, _Mdouble_ __n));
-# endif
-
+# ifdef __USE_ISOC99
/* Return X times (2 to the Nth power). */
__MATHCALL (scalbn,, (_Mdouble_ __x, int __n));
+# endif
/* Return the binary exponent of X, which must be nonzero. */
__MATHDECL (int,ilogb,, (_Mdouble_ __x));
#endif
+#if __GLIBC_USE (IEC_60559_BFP_EXT) || __MATH_DECLARING_FLOATN
+/* Like ilogb, but returning long int. */
+__MATHDECL (long int, llogb,, (_Mdouble_ __x));
+#endif
+
#ifdef __USE_ISOC99
/* Return X times (2 to the Nth power). */
__MATHCALL (scalbln,, (_Mdouble_ __x, long int __n));
/* Round X to nearest integral value, rounding halfway cases away from
zero. */
-__MATHCALL (round,, (_Mdouble_ __x));
+__MATHCALLX (round,, (_Mdouble_ __x), (__const__));
/* Round X to the integral value in floating-point format nearest but
not larger in magnitude. */
/* Round X to nearest integral value according to current rounding
direction. */
__MATHDECL (long int,lrint,, (_Mdouble_ __x));
+__extension__
__MATHDECL (long long int,llrint,, (_Mdouble_ __x));
/* Round X to nearest integral value, rounding halfway cases away from
zero. */
__MATHDECL (long int,lround,, (_Mdouble_ __x));
+__extension__
__MATHDECL (long long int,llround,, (_Mdouble_ __x));
__MATHCALL (fdim,, (_Mdouble_ __x, _Mdouble_ __y));
/* Return maximum numeric value from X and Y. */
-__MATHCALL (fmax,, (_Mdouble_ __x, _Mdouble_ __y));
+__MATHCALLX (fmax,, (_Mdouble_ __x, _Mdouble_ __y), (__const__));
/* Return minimum numeric value from X and Y. */
-__MATHCALL (fmin,, (_Mdouble_ __x, _Mdouble_ __y));
+__MATHCALLX (fmin,, (_Mdouble_ __x, _Mdouble_ __y), (__const__));
+
+/* Multiply-add function computed as a ternary operation. */
+__MATHCALL (fma,, (_Mdouble_ __x, _Mdouble_ __y, _Mdouble_ __z));
+#endif /* Use ISO C99. */
+#if __GLIBC_USE (IEC_60559_BFP_EXT) || __MATH_DECLARING_FLOATN
+/* Round X to nearest integer value, rounding halfway cases to even. */
+__MATHCALLX (roundeven,, (_Mdouble_ __x), (__const__));
-/* Classify given number. */
-__MATHDECL_1 (int, __fpclassify,, (_Mdouble_ __value))
+/* Round X to nearest signed integer value, not raising inexact, with
+ control of rounding direction and width of result. */
+__MATHDECL (__intmax_t, fromfp,, (_Mdouble_ __x, int __round,
+ unsigned int __width));
+
+/* Round X to nearest unsigned integer value, not raising inexact,
+ with control of rounding direction and width of result. */
+__MATHDECL (__uintmax_t, ufromfp,, (_Mdouble_ __x, int __round,
+ unsigned int __width));
+
+/* Round X to nearest signed integer value, raising inexact for
+ non-integers, with control of rounding direction and width of
+ result. */
+__MATHDECL (__intmax_t, fromfpx,, (_Mdouble_ __x, int __round,
+ unsigned int __width));
+
+/* Round X to nearest unsigned integer value, raising inexact for
+ non-integers, with control of rounding direction and width of
+ result. */
+__MATHDECL (__uintmax_t, ufromfpx,, (_Mdouble_ __x, int __round,
+ unsigned int __width));
+
+/* Return value with maximum magnitude. */
+__MATHCALLX (fmaxmag,, (_Mdouble_ __x, _Mdouble_ __y), (__const__));
+
+/* Return value with minimum magnitude. */
+__MATHCALLX (fminmag,, (_Mdouble_ __x, _Mdouble_ __y), (__const__));
+
+/* Total order operation. */
+__MATHDECL_1 (int, totalorder,, (_Mdouble_ __x, _Mdouble_ __y))
__attribute__ ((__const__));
-/* Test for negative number. */
-__MATHDECL_1 (int, __signbit,, (_Mdouble_ __value))
+/* Total order operation on absolute values. */
+__MATHDECL_1 (int, totalordermag,, (_Mdouble_ __x, _Mdouble_ __y))
__attribute__ ((__const__));
+/* Canonicalize floating-point representation. */
+__MATHDECL_1 (int, canonicalize,, (_Mdouble_ *__cx, const _Mdouble_ *__x));
-/* Multiply-add function computed as a ternary operation. */
-__MATHCALL (fma,, (_Mdouble_ __x, _Mdouble_ __y, _Mdouble_ __z));
-#endif /* Use ISO C99. */
+/* Get NaN payload. */
+__MATHCALL (getpayload,, (const _Mdouble_ *__x));
+
+/* Set quiet NaN payload. */
+__MATHDECL_1 (int, setpayload,, (_Mdouble_ *__x, _Mdouble_ __payload));
+
+/* Set signaling NaN payload. */
+__MATHDECL_1 (int, setpayloadsig,, (_Mdouble_ *__x, _Mdouble_ __payload));
+#endif
+
+#if (defined __USE_MISC || (defined __USE_XOPEN_EXTENDED \
+ && __MATH_DECLARING_DOUBLE \
+ && !defined __USE_XOPEN2K8)) \
+ && !__MATH_DECLARING_FLOATN
+/* Return X times (2 to the Nth power). */
+__MATHCALL (scalb,, (_Mdouble_ __x, _Mdouble_ __n));
+#endif
projects / thirdparty / glibc.git / blobdiff