1 2 3 4 5 6 7 8 9 10 11 12
#include "f2c.h" #ifdef KR_headers double erf(); double G77_derf_0 (x) doublereal *x; #else extern double erf(double); double G77_derf_0 (doublereal *x) #endif { return( erf(*x) ); }