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/* Get integer exponent of a floating-point value.
Copyright (C) 1999-2025 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
<https://www.gnu.org/licenses/>. */
#include <limits.h>
#include <math.h>
#include <stdbit.h>
#include <libm-alias-float.h>
#include <math-type-macros-float.h>
#include "math_config.h"
#ifdef DEF_AS_LLOGBF
# define DECL_NAME __llogb
# define FUNC_NAME llogb
# define RET_TYPE long int
# define RET_LOGB0 FP_LLOGB0
# define RET_LOGBNAN FP_LLOGBNAN
# define RET_LOGMAX LONG_MAX
# define RET_INVALID __math_invalidf_li
#else
# define DECL_NAME __ilogb
# define FUNC_NAME ilogb
# define RET_TYPE int
# define RET_LOGB0 FP_ILOGB0
# define RET_LOGBNAN FP_ILOGBNAN
# define RET_LOGMAX INT_MAX
# define RET_INVALID __math_invalidf_i
#endif
#define __IMPL_NAME(x,y) x ## _ ## y
#define _IMPL_NAME(x,y) __IMPL_NAME(x,y)
#define IMPL_NAME _IMPL_NAME(FUNC_NAME, impl)
#include <w_ilogbf-impl.h>
RET_TYPE
M_DECL_FUNC (DECL_NAME) (float x)
{
return IMPL_NAME (x);
}
libm_alias_float (DECL_NAME, FUNC_NAME);
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