My program keeps saying istream and ostream are not declared when I'm trying to create this class:
as you can see im including iostream, i also tried ios, istream & ostream and none work... any ideas?Code:#include <iostream> #ifndef TRANSPORT_H_ #define TRANSPORT_H_ class Transport{ public: Transport(); Transport(double cost); double get_cost() const; void set_cost(double c); virtual void output(ostream & outs) = 0; virtual void input(istream & ins) = 0; private: double cost; }; #endif
thanks
ummm nevermind im an idiot, its late and i forgot my namespace
Or better, explicitly qualify them, since this appears to be a header. And if it is a header, put the entire contents of the file between the guards.
7. It is easier to write an incorrect program than understand a correct one.
40. There are two ways to write error-free programs; only the third one works.*
> ummm nevermind im an idiot, its late and i forgot my namespace
Putting namespace into header files is a good way to ........ off everyone who uses your header file, and doesn't want your choice of namespace.
If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
If at first you don't succeed, try writing your phone number on the exam paper.
How else would you std::istreamOriginally Posted by Salem
Warning: Have doubt in anything I post.
GCC 4.5, Boost 1.40, Code::Blocks 8.02, Ubuntu 9.10 010001000110000101100101
