1 #include <float.h> 2 #include "libm.h" 3 4 #if LDBL_MANT_DIG != DBL_MANT_DIG __math_invalidl(long double x)5 long double __math_invalidl(long double x) 6 { 7 return (x - x) / (x - x); 8 } 9 #endif 10