000
16.03.2004, 18:49 Uhr
Pablo
Supertux
(Operator)
|
Ich habe das jetzt nur aus Übung gemacht
| C++: |
// cl.h
#ifndef CAT_H
#define CAT_H
#include <iostream>
class Cat
{
int val;
public:
Cat();
Cat(int x);
void setval(int x);
int getval();
std::ostream& operator<<(std::ostream& out, const Cat& v);
};
#endif
|
| C++: |
//cl.cpp
#include "cl.h"
Cat::Cat()
{
this->val = 0;
}
Cat::Cat(int x)
{
this->val = x;
}
void Cat::setval(int x)
{
this->val = x;
}
int Cat::getval()
{
return this->val;
}
std::ostream& operator<<(std::ostream& out, const Cat& v)
{
out << v.getval();
return out;
}
int main()
{
Cat a,b(1);
a.setval(19);
std::cout << "a.getval()=" << a.getval() << std::endl << "b.getval()=" << b.getval() << std::endl;
return 0;
}
|
Wieso kriege ich folgenden Fehler? (g++ (GCC) 3.2.3 20030422 )
| bash: |
rex@supertux:~/programmierung/c++/kkk> g++ cl.cpp -o cl
In file included from cl.cpp:1:
cl.h:13: `std::ostream& Cat::operator<<(std::ostream&, const Cat&)' must take
exactly one argument
cl.cpp: In function `std::ostream& operator<<(std::ostream&, const Cat&)':
cl.cpp:24: passing `const Cat' as `this' argument of `int Cat::getval()'
discards qualifiers
|
Was habe ich falsch gemacht?
--
A! Elbereth Gilthoniel!
silivren penna míriel
o menel aglar elenath,
Gilthoniel, A! Elbereth!
Dieser Post wurde am 16.03.2004 um 18:49 Uhr von Pablo editiert. |
