extern "C" { #include extern void F77_DGEMM(const char*, const char*, const int*, const int*, const int*, const double*, const double*, const int*, const double*, const int*, const double*, double*, const int*); extern void F77_DAXPY(const int* n, const double* da, const double* dx, const int* incx, double* dy, const int* incy); extern double F77_DDOT(const int* n, const double* dx, const int* incx, double* dy, const int* incy); }