#if !defined ISO && !defined POSIX
macro fpclassify
macro isfinite
macro isinf
macro isnan
macro isnormal
macro signbit
macro isgreater
macro isgreaterequal
macro isless
macro islessequal
macro islessgreater
macro isunordered

# ifndef POSIX2008
constant M_E
constant M_LOG2E
constant M_LOG10E
constant M_LN2
constant M_LN10
constant M_PI
constant M_PI_2
constant M_PI_4
constant M_1_PI
constant M_2_PI
constant M_2_SQRTPI
constant M_SQRT2
constant M_SQRT1_2

constant MAXFLOAT
# endif
constant HUGE_VAL
constant HUGE_VALF
constant HUGE_VALL
constant INFINITY
constant NAN

macro FP_INFINITE
macro FP_NAN
macro FP_NORMAL
macro FP_SUBNORMAL
macro FP_ZERO

optional-macro FP_FAST_FMA
optional-macro FP_FAST_FMAF
optional-macro FP_FAST_FMAL

constant FP_ILOGB0
constant FP_ILOGBNAN

macro MATH_ERRNO == 1
macro MATH_ERREXCEPT == 2
#endif

macro math_errhandling

function double acos (double)
function double asin (double)
function double atan (double)
function double atan2 (double, double)
function double ceil (double)
function double copysign (double, double)
function double cos (double)
function double cosh (double)
function double exp (double)
function double exp2 (double)
function double fabs (double)
function double floor (double)
function double fmod (double, double)
function double frexp (double, int*)
function double ldexp (double, int)
function double log (double)
function double log10 (double)
function double log2 (double)
function double modf (double, double*)
function double pow (double, double)
function double sin (double)
function double sinh (double)
function double sqrt (double)
function double tan (double)
function double tanh (double)
function double erf (double)
function double erfc (double)
#if defined XPG3 || defined XPG4 || defined UNIX98
function double gamma (double)
#endif
function double hypot (double, double)
#if !defined POSIX && !defined POSIX2008
function double j0 (double)
function double j1 (double)
function double jn (int, double)
#endif
function double lgamma (double)
function double tgamma (double)
#if !defined POSIX && !defined POSIX2008
function double y0 (double)
function double y1 (double)
function double yn (int, double)
#endif
function double acosh (double)
function double asinh (double)
function double atanh (double)
function double cbrt (double)
function double expm1 (double)
function int ilogb (double)
function double log1p (double)
function double logb (double)
function double nextafter (double, double)
function double nexttoward (double, long double)
function double nearbyint (double)
function double remainder (double, double)
function double rint (double)
function double round (double)
function double trunc (double)
function long lrint (double)
function {long long} llrint (double)
function long lround (double)
function {long long} llround (double)
function double remquo (double, double, int*)
#if defined XPG3 && defined XPG4 && defined UNIX98 && defined XOPEN2K
function double scalb (double, double)
#endif
function double scalbn (double, int)
function double scalbln (double, long)
function double fdim (double, double)
function double fmax (double, double)
function double fmin (double, double)
function double fma (double, double, double)
function double nan (const char*)

#if !defined POSIX && !defined POSIX2008
// variable signgam
allow signgam
#endif

#if !defined ISO && !defined POSIX
function float acosf (float)
function float asinf (float)
function float atanf (float)
function float atan2f (float, float)
function float ceilf (float)
function float copysignf (float, float)
function float cosf (float)
function float coshf (float)
function float expf (float)
function float exp2f (float)
function float fabsf (float)
function float floorf (float)
function float fmodf (float, float)
function float frexpf (float, int*)
function float ldexpf (float, int)
function float logf (float)
function float log10f (float)
function float log2f (float)
function float modff (float, float*)
function float powf (float, float)
function float sinf (float)
function float sinhf (float)
function float sqrtf (float)
function float tanf (float)
function float tanhf (float)
function float erff (float)
function float erfcf (float)
#if defined XPG3 || defined XPG4 || defined UNIX98
function float gammaf (float)
#endif
function float hypotf (float, float)
#if !defined POSIX && !defined POSIX2008
function float j0f (float)
function float j1f (float)
function float jnf (int, float)
#endif
function float lgammaf (float)
function float tgammaf (float)
#if !defined POSIX && !defined POSIX2008
function float y0f (float)
function float y1f (float)
function float ynf (int, float)
#endif
function float acoshf (float)
function float asinhf (float)
function float atanhf (float)
function float cbrtf (float)
function float expm1f (float)
function int ilogbf (float)
function float log1pf (float)
function float logbf (float)
function float nextafterf (float, float)
function float nexttowardf (float, long double)
function float nearbyintf (float)
function float remainderf (float, float)
function float rintf (float)
function float roundf (float)
function float truncf (float)
function long lrintf (float)
function {long long} llrintf (float)
function long lroundf (float)
function {long long} llroundf (float)
function float remquof (float, float, int*)
#if defined XPG3 && defined XPG4 && defined UNIX98 && defined XOPEN2K
function float scalbf (float, float)
#endif
function float scalbnf (float, int)
function float scalblnf (float, long)
function float fdimf (float, float)
function float fmaxf (float, float)
function float fminf (float, float)
function float fmaf (float, float, float)
function float nanf (const char*)

function {long double} acosl (long double)
function {long double} asinl (long double)
function {long double} atanl (long double)
function {long double} atan2l (long double, long double)
function {long double} ceill (long double)
function {long double} copysignl (long double, long double)
function {long double} cosl (long double)
function {long double} coshl (long double)
function {long double} expl (long double)
function {long double} exp2l (long double)
function {long double} fabsl (long double)
function {long double} floorl (long double)
function {long double} fmodl (long double, long double)
function {long double} frexpl (long double, int*)
function {long double} ldexpl (long double, int)
function {long double} logl (long double)
function {long double} log10l (long double)
function {long double} log2l (long double)
function {long double} modfl (long double, long double*)
function {long double} powl (long double, long double)
function {long double} sinl (long double)
function {long double} sinhl (long double)
function {long double} sqrtl (long double)
function {long double} tanl (long double)
function {long double} tanhl (long double)
function {long double} erfl (long double)
function {long double} erfcl (long double)
#if defined XPG3 || defined XPG4 || defined UNIX98
function {long double} gammal (long double)
#endif
function {long double} hypotl (long double, long double)
#if !defined POSIX && !defined POSIX2008
function {long double} j0l (long double)
function {long double} j1l (long double)
function {long double} jnl (int, long double)
#endif
function {long double} lgammal (long double)
function {long double} tgammal (long double)
#if !defined POSIX && !defined POSIX2008
function {long double} y0l (long double)
function {long double} y1l (long double)
function {long double} ynl (int, long double)
#endif
function {long double} acoshl (long double)
function {long double} asinhl (long double)
function {long double} atanhl (long double)
function {long double} cbrtl (long double)
function {long double} expm1l (long double)
function int ilogbl (long double)
function {long double} log1pl (long double)
function {long double} logbl (long double)
function {long double} nextafterl (long double, long double)
function {long double} nexttowardl (long double, long double)
function {long double} nearbyintl (long double)
function {long double} remainderl (long double, long double)
function {long double} rintl (long double)
function {long double} roundl (long double)
function {long double} truncl (long double)
function long lrintl (long double)
function {long long} llrintl (long double)
function long lroundl (long double)
function {long long} llroundl (long double)
function {long double} remquol (long double, long double, int*)
#if defined XPG3 && defined XPG4 && defined UNIX98 && defined XOPEN2K
function {long double} scalbl (long double, long double)
#endif
function {long double} scalbnl (long double, int)
function {long double} scalblnl (long double, long)
function {long double} fdiml (long double, long double)
function {long double} fmaxl (long double, long double)
function {long double} fminl (long double, long double)
function {long double} fmal (long double, long double, long double)
function {long double} nanl (const char*)
#else
allow acosf
allow asinf
allow atanf
allow atan2f
allow ceilf
allow copysignf
allow cosf
allow coshf
allow expf
allow exp2f
allow fabsf
allow floorf
allow fmodf
allow frexpf
allow ldexpf
allow logf
allow log10f
allow log2f
allow powf
allow sinf
allow sinhf
allow sqrtf
allow tanf
allow tanhf
allow erff
allow erfcf
allow gammaf
allow hypotf
allow j0f
allow j1f
allow jnf
allow lgammaf
allow tgammaf
allow y0f
allow y1f
allow ynf
allow isnanf
allow acoshf
allow asinhf
allow atanhf
allow cbrtf
allow expm1f
allow ilogbf
allow log1pf
allow logbf
allow nextafterf
allow remainderf
allow rintf
allow scalbf

allow acosl
allow asinl
allow atanl
allow atan2l
allow ceill
allow copysignl
allow cosl
allow coshl
allow expl
allow exp2l
allow fabsl
allow floorl
allow fmodl
allow frexpl
allow ldexpl
allow logl
allow log10l
allow log2l
allow powl
allow sinl
allow sinhl
allow sqrtl
allow tanl
allow tanhl
allow erfl
allow erfcl
allow gammal
allow hypotl
allow j0l
allow j1l
allow jnl
allow lgammal
allow tgammal
allow y0l
allow y1l
allow ynl
allow isnanl
allow acoshl
allow asinhl
allow atanhl
allow cbrtl
allow expm1l
allow ilogbl
allow log1pl
allow logbl
allow nextafterl
allow remainderl
allow rintl
allow scalbl
#endif

allow *_t
// The following expressions are not entirely correct but the current
// poorfnmatch implementation doesn't grok the right form.
allow FP_*