__vhypot
extern void __vhypot(int, double *, int, double *, int, double *, int);
__vhypot(n, x, stridex, x + 1, stridex, y, stridey);
extern void __vhypot(int, double *, int, double *, int, double *, int);
__vhypot(n, x, stridex, x + 1, stridex, y + 1, stridey);
extern void __vhypot(int, double *, int, double *, int, double *, int);
__vhypot(*n, x, *stridex, y, *stridey, z, *stridez);