{
friend std::ostream& operator <<(std::ostream& f, const R4 & P )
{ f << P.x << ' ' << P.y << ' ' << P.z << ' ' << P.omega; return f; }
- friend istream& operator >>(istream& f, R4 & P)
+ friend std::istream& operator >>(std::istream& f, R4 & P)
{ f >> P.x >> P.y >> P.z >> P.omega ; return f; }
friend std::ostream& operator <<(std::ostream& f, const R4 * P )
{ f << P->x << ' ' << P->y << ' ' << P->z << ' ' << P->omega; return f; }
- friend istream& operator >>(istream& f, R4 * P)
+ friend std::istream& operator >>(std::istream& f, R4 * P)
{ f >> P->x >> P->y >> P->z >> P->omega ; return f; }
public: