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Published on 2010-04-14T21:46:16Z
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What is an integer overflow error? why do i care about it? how can it be avoided?
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I have always been skeptical of rewriting working code - porting code is no exception to this. However, with the advent of TDD and automated testing it is much more reasonable to rewrite and refactor code.
Does anyone know if there is a TDD tool that can be used for porting old code? Ideally you…
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This is very basic question from programming point of view but as I am in learning phase, I thought I would better ask this question rather than having a misunderstanding or narrow knowledge about the topic.
So do excuse me if somehow I mess it up.
Question:
Let's say I have class A,B,C and D…
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Is there an accepted general term that subsumes the concepts of variables, class instances and arrays? Basically "any typed thing that needs memory". In C++, such a thing is called an object, but I'm looking for a more language-agnostic term.
§ 1.8 The C++ object model
1 The constructs in…
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A lot of the code I've been working on recently, both professionally (read: at work) and in other spheres (read: at home, for friends/family/etc, or NOT FOR WORK), has been worked on, redesigned and re-implemented several times - where possible/required. This has been in an effort to make things smaller…
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Hi there:
I might be doing a coding competition soon, I was wondering if anyone made one and what where the guidelines/ process.
I'd like to make the competition appealing to all devs, and I m trying to come up with ideas as to how.
the scenario is: There is an event running and we(of the coding…
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I was writing a program in C++ to find all solutions of a^b = c (a to the power of b), where a, b and c together use all the digits 0-9 exactly once. The program looped over values of a and b, and ran a digit-counting routine each time on a, b and a^b to check if the digits condition was satisfied…
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What is an integer overflow error?
why do i care about it?
how can it be avoided?
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There's (1):
// assume x,y are non-negative
if(x > max - y) error;
And (2):
// assume x,y are non-negative
int sum = x + y;
if(sum < x || sum < y) error;
Whichs is preferred or is there a better way.
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Related question: http://stackoverflow.com/questions/199333/best-way-to-detect-integer-overflow-in-c-c
In C code, should integer overflow be addressed whenever integers are added? It seems like pointers and array indexes should be checked at all. When should integer overflow be checked for?
When…
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This the part of my OpenGL code, I am getting an error for :
struct Ball {
float x;
float y;
float rot;
float dir;
bool rmv;
Ball* next;
};
Ball* curBall;
void addBall() {
if (balls==NULL) {
balls=new Ball;
balls->next=NULL;
curBall=balls;
…
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