/* Prototype declarations for math functions; helper file for <math.h>.
- Copyright (C) 1996-2003, 2006, 2011, 2012 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
/* Trigonometric functions. */
-_Mdouble_BEGIN_NAMESPACE
/* Arc cosine of X. */
__MATHCALL (acos,, (_Mdouble_ __x));
/* Arc sine of X. */
__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));
__MATHCALL (sinh,, (_Mdouble_ __x));
/* Hyperbolic tangent of X. */
__MATHCALL (tanh,, (_Mdouble_ __x));
-_Mdouble_END_NAMESPACE
#ifdef __USE_GNU
/* Cosine and sine of X. */
-__MATHDECL (void,sincos,,
- (_Mdouble_ __x, _Mdouble_ *__sinx, _Mdouble_ *__cosx));
+__MATHDECL_VEC (void,sincos,,
+ (_Mdouble_ __x, _Mdouble_ *__sinx, _Mdouble_ *__cosx));
#endif
-#if defined __USE_MISC || defined __USE_XOPEN_EXTENDED || defined __USE_ISOC99
-__BEGIN_NAMESPACE_C99
+#if defined __USE_XOPEN_EXTENDED || defined __USE_ISOC99
/* Hyperbolic arc cosine of X. */
__MATHCALL (acosh,, (_Mdouble_ __x));
/* Hyperbolic arc sine of X. */
__MATHCALL (asinh,, (_Mdouble_ __x));
/* Hyperbolic arc tangent of X. */
__MATHCALL (atanh,, (_Mdouble_ __x));
-__END_NAMESPACE_C99
#endif
/* Exponential and logarithmic functions. */
-_Mdouble_BEGIN_NAMESPACE
/* Exponential function of X. */
-__MATHCALL (exp,, (_Mdouble_ __x));
+__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))
- __attribute__ ((__nonnull__ (2)));
-_Mdouble_END_NAMESPACE
+__MATHCALL (modf,, (_Mdouble_ __x, _Mdouble_ *__iptr)) __nonnull ((2));
-#ifdef __USE_GNU
-/* A function missing in all standards: compute exponent to base ten. */
+#if __GLIBC_USE (IEC_60559_FUNCS_EXT)
+/* Compute exponent to base ten. */
__MATHCALL (exp10,, (_Mdouble_ __x));
-/* Another name occasionally used. */
-__MATHCALL (pow10,, (_Mdouble_ __x));
#endif
-#if defined __USE_MISC || defined __USE_XOPEN_EXTENDED || defined __USE_ISOC99
-__BEGIN_NAMESPACE_C99
+#if defined __USE_XOPEN_EXTENDED || defined __USE_ISOC99
/* Return exp(X) - 1. */
__MATHCALL (expm1,, (_Mdouble_ __x));
/* Return the base 2 signed integral exponent of X. */
__MATHCALL (logb,, (_Mdouble_ __x));
-__END_NAMESPACE_C99
#endif
#ifdef __USE_ISOC99
-__BEGIN_NAMESPACE_C99
/* Compute base-2 exponential of X. */
__MATHCALL (exp2,, (_Mdouble_ __x));
/* Compute base-2 logarithm of X. */
__MATHCALL (log2,, (_Mdouble_ __x));
-__END_NAMESPACE_C99
#endif
/* Power functions. */
-_Mdouble_BEGIN_NAMESPACE
/* 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));
-_Mdouble_END_NAMESPACE
-#if defined __USE_MISC || defined __USE_XOPEN || defined __USE_ISOC99
-__BEGIN_NAMESPACE_C99
+#if defined __USE_XOPEN || defined __USE_ISOC99
/* Return `sqrt(X*X + Y*Y)'. */
__MATHCALL (hypot,, (_Mdouble_ __x, _Mdouble_ __y));
-__END_NAMESPACE_C99
#endif
-#if defined __USE_MISC || defined __USE_XOPEN_EXTENDED || defined __USE_ISOC99
-__BEGIN_NAMESPACE_C99
+#if defined __USE_XOPEN_EXTENDED || defined __USE_ISOC99
/* Return the cube root of X. */
__MATHCALL (cbrt,, (_Mdouble_ __x));
-__END_NAMESPACE_C99
#endif
/* Nearest integer, absolute value, and remainder functions. */
-_Mdouble_BEGIN_NAMESPACE
/* Smallest integral value not less than X. */
__MATHCALLX (ceil,, (_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__));
-_Mdouble_END_NAMESPACE
-
#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__));
/* 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
-__BEGIN_NAMESPACE_C99
+#ifdef __USE_ISOC99
/* Return X with its signed changed to Y's. */
__MATHCALLX (copysign,, (_Mdouble_ __x, _Mdouble_ __y), (__const__));
-__END_NAMESPACE_C99
#endif
#ifdef __USE_ISOC99
-__BEGIN_NAMESPACE_C99
-/* Return representation of NaN for double type. */
+/* Return representation of qNaN for double type. */
__MATHCALLX (nan,, (const char *__tagb), (__const__));
-__END_NAMESPACE_C99
#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
-__BEGIN_NAMESPACE_C99
+#if defined __USE_XOPEN || defined __USE_ISOC99
/* Error and gamma functions. */
__MATHCALL (erf,, (_Mdouble_));
__MATHCALL (erfc,, (_Mdouble_));
__MATHCALL (lgamma,, (_Mdouble_));
-__END_NAMESPACE_C99
#endif
#ifdef __USE_ISOC99
-__BEGIN_NAMESPACE_C99
/* True gamma function. */
__MATHCALL (tgamma,, (_Mdouble_));
-__END_NAMESPACE_C99
#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
-__BEGIN_NAMESPACE_C99
+#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__));
-# if defined __USE_ISOC99 && !defined __LDBL_COMPAT
-__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_ISOC99
+# ifdef __USE_ISOC99
/* Return X times (2 to the Nth power). */
__MATHCALL (scalbn,, (_Mdouble_ __x, int __n));
# endif
__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 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));
/* Return minimum numeric value from X and 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__));
+
+/* 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));
-/* Classify given number. */
-__MATHDECL_1 (int, __fpclassify,, (_Mdouble_ __value))
+/* 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));
-#if defined __USE_MISC || defined __USE_XOPEN_EXTENDED || defined __USE_ISOC99
-__END_NAMESPACE_C99
+/* Set signaling NaN payload. */
+__MATHDECL_1 (int, setpayloadsig,, (_Mdouble_ *__x, _Mdouble_ __payload));
#endif
-#if defined __USE_MISC || defined __USE_XOPEN_EXTENDED
+#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
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