Question

I haven`t found answer to my question using search, though I thought it is simple and popular. Anyway, my question is:
I have got a header file, which declares a class and functions in it. It looks like that:

#ifndef SOME_CLASS_H
#define SOME_CLASS_H

#include <string>

class mySomeClass
{
    public:

    bool a_func(string & myString, unsigned long int & x);
    void b_func(string & myString, unsigned long int & x);
    void c_func(string & myString, unsigned long int & x);

    void another_func(string & myString, string & myString2);

    }

#endif // SOME_CLASS_H

I think function definitions do not actually matter now.

When compiling, compiler tells that ‘string’ has not been declared, even though I have added #include <string> . How can I solve this except for rewriting functions to use char* instead. Thank you in advance.

Done. Thanks everybody.

Answer 1

string is declared in the namespace std, so you have to change the function declarations to

bool a_func(std::string & myString, unsigned long int & x);