alt Hacker NewsThe comment reappeared, and while you're right about using proper libraries to handle data, it doesn't excuse the "undefined behavior (uninitialized local variables)" that I still see all the time despite all the warning and error flags that can be fed to the compiler.
Most of the time, the programmers who do this do not follow the simple rule that Stroustrup said which is to define or initialize a variable where you declare it (i.e. declare it before using it), and which would solve a lot of bugs in C++.
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> it doesn't excuse the "undefined behavior (uninitialized local variables)" that I still see all the time despite all the warning and error flags that you can feed to the compiler.
Yeah but we're talking about a 2004 game that was pretty rushed after 2002's Vice City (and I wouldn't be surprised if the bug in the ingestion code didn't exist there as well, just wasn't triggered due to the lack of planes except that darn RC Chopper and RC plane from that bombing run mission). Back then, the tooling to spot UB and code smell didn't even exist or, if at all, it was very rudimentary, or the warnings that did come up were just ignored because everything seemed to work.
While it doesn't excuse the bad habits, we do have to keep in mind C++98 (or whatever more ancient was used back then) didn't have the simple initializers we now take for granted. You couldn't just do 'Type myStruct = {};' to null-initialize it, you had to manually NULL all nested fields. God forbid you change the order of the variables in the struct if you're nesting them and forget to update it everywhere. It was just considerably more practical to do 'Type myStruct;' then set the fields when needed.