ardupilot/libraries/AP_Common/missing/cmath

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#pragma once
#include_next <cmath>
#ifndef WAF_BUILD
# ifdef __GLIBC__
# if __GLIBC_PREREQ(2, 23)
# define GLIBC_FIX_NEEDED 1
# else
# define GLIBC_FIX_NEEDED 0
# endif
# else
# define GLIBC_FIX_NEEDED 0
# endif
# if GLIBC_FIX_NEEDED || defined (__CYGWIN__)
# ifndef HAVE_CMATH_ISFINITE
# define HAVE_CMATH_ISFINITE
# define NEED_CMATH_ISFINITE_STD_NAMESPACE
# endif
# ifndef HAVE_CMATH_ISINF
# define HAVE_CMATH_ISINF
# define NEED_CMATH_ISINF_STD_NAMESPACE
# endif
# ifndef HAVE_CMATH_ISNAN
# define HAVE_CMATH_ISNAN
# define NEED_CMATH_ISNAN_STD_NAMESPACE
# endif
# undef GLIBC_FIX_NEEDED
# endif
#endif
#if defined(HAVE_CMATH_ISFINITE) && defined(NEED_CMATH_ISFINITE_STD_NAMESPACE)
using std::isfinite;
#endif
#if defined(HAVE_CMATH_ISINF) && defined(NEED_CMATH_ISINF_STD_NAMESPACE)
using std::isinf;
#endif
#if defined(HAVE_CMATH_ISNAN) && defined(NEED_CMATH_ISNAN_STD_NAMESPACE)
using std::isnan;
#endif