Trying to use int in getline
Use Check the errors too
c++
How to return a struct from a function in C++?
You have a scope problem. Define the struct before the function, not inside it.
Learning to work with audio in C++
It really depends on what kind of audio work you want to do, If you want to implement audio for a game, C++ is sure the right language. There are many libraries around, OpenAL is great, free and multiplatform. I also used DirectSound and Fmod with great sucess. Check them out, it all depends on … Read more
term does not evaluate to a function taking 1 arguments
Problem #1: The name of the second argument and the type of the second argument are swapped somehow. It should be: Instead of: Which is what you have. Problem #2: You need to add a couple of parentheses to get the function correctly dereferenced: Eventually, this is what you get: And here is a live example of your program … Read more
member access within null pointer of type ‘struct ListNode’
You only make sure that runner->next is not null, however after assignment runner = runner->next->next; runner can become null.
Why do you use typedef when declaring an enum in C++?
In C, declaring your enum the first way allows you to use it like so: If you use the second style, you’ll be forced to declare your variable like this: As mentioned by others, this doesn’t make a difference in C++. My guess is that either the person who wrote this is a C programmer … Read more
Simple string parsing with C++
This is a try using only standard C++. Most of the time I use a combination of std::istringstream and std::getline (which can work to separate words) to get what I want. And if I can I make my config files look like: foo=1,2,3,4 which makes it easy. text file is like this: And you parse … Read more
Reading and writing binary file
If you want to do this the C++ way, do it like this: If you need that data in a buffer to modify it or something, do this:
C++ getInt() function (have a java equivalent attached)
You just try to read an int with cin >> [int variable], and make sure it succeeded. If not, wash, rinse, and repeat: That will work, but will return 12 when given input like 12 a because it will read the 12 and stop at a. If you do not want to just “get as much as you can” and want … Read more
Is string::compare reliable to determine alphabetical order?
According to the docs at cplusplus.com, The member function returns 0 if all the characters in the compared contents compare equal, a negative value if the first character that does not match compares to less in the object than in the comparing string, and a positive value in the opposite case. So it will sort … Read more