1 91c13e54 2004-02-29 devnull extern double __NaN(void); 2 91c13e54 2004-02-29 devnull extern double __Inf(int); 3 91c13e54 2004-02-29 devnull extern int __isNaN(double); 4 91c13e54 2004-02-29 devnull extern int __isInf(double, int);