[.net] How to make function that return more than 1 value in Visual C++?
Author
Hi I am using Visual C++.
Is it possible to make a function that return
more than one value? At least they have the same type.
For example, I want to get the file name and the file
content but both of them of the same type, which is
String. I don't know if it is possible or not. If it
is possible, how to do that?
Please give me a code sample if possible, in C# also no problem.
Thank you very much.
One simple way would be to make a struct
Just remember that for larger structures, you probably want to allocate on the heap, and return a pointer.
struct FileInfo{ std::string name std::string data};FileInfo foo ( ... blah ){FileInfo rVal.. blah ..return rVal;}int main ( ){FileInfo data = foo ( ... );std::cout << data.name << " : " << data.data << std::endl;}Just remember that for larger structures, you probably want to allocate on the heap, and return a pointer.
FileInfo *foo ( ... ){FileInfo *rVal = new FileInfo;... blah ...return rVal;}int main ( ){FileInfo *data = foo ( ... );std::cout << data->name << " : " << data->data << std::endl;delete data;}
If you want to return a number of objects of the same type, you can return a std::vector of them, or something similar.
std::vector< std::string > GetFileNameAndContents(){ std::vector< std::string > strings; //fill strings with whatever return strings;}
This topic is closed to new replies.
Advertisement
Popular Topics
Advertisement
