Hello,
I am learning C and would like to port a short C++ program. I'm sure that the code is full of awkward implementations but getting this to work will go a long way. The original source was written by Ben Humphrey of gametutorials.com. Below is the line I don't understand how to approach. How would I go about writing a C equivalent of this?
Code:fin >> strTemp >> room.strRoomNorth;
You would need to post the types of fin, strTemp, and room.strRoomNorth. We could guess that fin is a fstream, and perhaps strTemp and strRoomNorth are some kind of strings, but what exactly they are would determine what exactly you would write in C.
Look up a C++ Reference and learn How To Ask Questions The Smart WayOriginally Posted by Bjarne Stroustrup (2000-10-14)
fin is ifstream, strTemp is string, room is a structure and strRoomNorth is a string.
Ah. fin >> strTemp reads non-whitespace characters into strTemp from the file input stream represented by fin. If you didn't care about the fact that the number of non-whitespace characters read is not fixed, you could use scanf with the %s format specifier and some field width (i.e., corresponding to whatever you choose to declare as the size of strTemp in C). If you do care, then you might need to do something like implement a loop with say, fgetc to read until the first whitespace character into a null terminated string stored in a dynamic array that you manually keep track of the size and capacity such that you can expand it as needed.
EDIT:
By the way, why are you porting a C++ program to C as part of your learning process in C? You don't seem to know C++, so it seems like a rather strange way to go about learning C as you would need to learn C++ too, and trying to learn C and C++ together is a recipe for confusion.
Last edited by laserlight; 10-08-2018 at 02:27 AM.
Look up a C++ Reference and learn How To Ask Questions The Smart Way
Thank you for your reply, I will explore those options. I want to write the same kind of program in C only and this source code is useful because it pretty much does exactly what I need.
