/* Define iscanonical macro.  ldbl-96 version.

   Copyright (C) 2016-2018 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 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

   Lesser General Public License for more details.

   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/>.  */

#ifndef _MATH_H

# error "Never use <bits/iscanonical.h> directly; include <math.h> instead."

#endif

extern int __iscanonicall (long double __x)

     __THROW __attribute__ ((__const__));

#define __iscanonicalf(x) ((void) (__typeof (x)) (x), 1)

#define __iscanonical(x) ((void) (__typeof (x)) (x), 1)

#if __HAVE_DISTINCT_FLOAT128

# define __iscanonicalf128(x) ((void) (__typeof (x)) (x), 1)

#endif

/* Return nonzero value if X is canonical.  In IEEE interchange binary

   formats, all values are canonical, but the argument must still be

   converted to its semantic type for any exceptions arising from the

   conversion, before being discarded; in extended precision, there

   are encodings that are not consistently handled as corresponding to

   any particular value of the type, and we return 0 for those.  */

#ifndef __cplusplus

# define iscanonical(x) __MATH_TG ((x), __iscanonical, (x))

#else

/* In C++ mode, __MATH_TG cannot be used, because it relies on

   __builtin_types_compatible_p, which is a C-only builtin.  On the

   other hand, overloading provides the means to distinguish between

   the floating-point types.  The overloading resolution will match

   the correct parameter (regardless of type qualifiers (i.e.: const

   and volatile)).  */

extern "C++" {

inline int iscanonical (float __val) { return __iscanonicalf (__val); }

inline int iscanonical (double __val) { return __iscanonical (__val); }

inline int iscanonical (long double __val) { return __iscanonicall (__val); }

# if __HAVE_DISTINCT_FLOAT128

inline int iscanonical (_Float128 __val) { return __iscanonicalf128 (__val); }

# endif

}

#endif /* __cplusplus */