how do i create a set method to get the fstream input file.
in need to be able to define the file location in the main method.
class a
{
private:
ifstream fileOne;
ofstream report1;
public:
void setinput(std::ifstream& in);
void setoutput(std::ofstream& out);
};how can i code these set methods.
Thank you
how do i create a set method to get the fstream input file.
in need to be able to define the file location in the main method.
class a { private: ifstream fileOne; ofstream report1; public: void setinput(std::ifstream& in); void setoutput(std::ofstream& out); };how can i code these set methods.
Use pointers:
class A // Better use capitalized names for your classes
{
public: // Better place public interface first
A():inFile(0),report(0) {}
void setinput(std::ifstream& in) { inFile = ∈ }
void setoutput(std::ofstream& out)
{
outFile = &out;
}
void report();
...
private: // it's not so interesting for the class user
ifstream* inFile;
ofstream* outFile;
};
void A::report()
{
if (outFile) {
ofstream& f = *outFile;
f << ...;
...
} // else no output file settings...
}Be careful: you must provide these fstream existence while A::report is working. So it's not a very robust architecture (no matter with or w/o pointers).
Thank you very much working perfectly i forgot about the pointers :)hehe
and one more thing how do i set the input file to "aa.txt" in the main method
oki i got it fixd.. had a small syntax error
and one more thing how do i set the input file to "aa.txt" in the main method
ifstream infile("aa.txt");
// or
infile.open("aa.txt");;)hehe
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