if(_LIB_VERSION == _IEEE_||__isnanf(x)||__isnanf(y)) return z;
if(_LIB_VERSION != _SVID_||__isnanf(x)||__isnanf(y)) return z; if(x==0.0&&y==0.0) return __kernel_standard(y,x,103);
	float __atan2f(float y, float x)		/* wrapper atan2f */#else	float __atan2f(y,x)			/* wrapper atan2 */	float y,x;#endif{#ifdef _IEEE_LIBM	return __ieee754_atan2f(y,x);#else	float z;	z = __ieee754_atan2f(y,x);	if(_LIB_VERSION == _IEEE_||__isnanf(x)||__isnanf(y)) return z;	return z;#endif}