I was just wondering how to deal with overflow. My code works for exponential when i put small numbers in like 2 and 3. So it would do 2^3 which would be 8. But if i try something like 2^44 then I just get 0.
I have some header files with generic functions. And in one of them, I define TRUE and FALSE. Recently I started using another header file and it defined TRUE and FALSE as well. That caused GCC to throw an error, and not compile. In my case I can put #IFNDEF around the values so that if it is already defined they don't get defined again, but is there a better way to handle duplicate names? I assume the case would be the same for duplicated functions, how does that get handled?
I've knocked up a rough C parser for the purpose of colourizing code into XHTML/CSS, which makes me feel fancy. However, it doesn't quite handle comments properly. I can't quite work out how to deal with the slashes. Plus I'm sure there are other places that it slips up that don't feature in my simple tests, so here you go:-
My assignment is to create a program to print a deck of 52 cards, shuffle it, deal 2 hands of 5 cards, then print the deck after dealing the 2 hands with the cards that were dealt removed. this is my code so far...
#include <stdio.h> #include <stdlib.h> #include <time.h> #define DECK_SIZE 52 void init_deck( int deck[] , int size ) ; void shuffle_deck( int deck[] , int size ) ;
[Code] ....
I am having trouble dealing 2 random hands and how to print the deck with the cards removed.
I am performing arithmetic operations on very large integers that operate around the threshold of the maximum positive integer an int variable can handle (i.e. 2147483647) for a 32-bit machine. I have been studying the in-built functions in the C++ Standard Library for some time now where I came across some error detecting functions in the <cmath> and <cerrno> header files. The impression I got from the literature is that they are solely used in conjunction with functions contained in the <cmath> header file and not necessarily with fundamental arithmetic operations like addition and subtraction.
I need a means to know when my arithmetic operations generate overflows/underflows! Is there any way I can adapt the functionalities of these functions to my needs?
After not programming for sometimes I decided to program a small application. But I have some trouble according to what I remember and re-checking arrays online. I don't understand how the code I wrote below is possible, shouldn't give a stack overflow error or something to that extent? Instead it gives me the value of 3.
#include "stdafx.h" #include<iostream> int _tmain(int argc, _TCHAR* argv[]) { int arr2 [2]; arr2 [3] = 3;
Code: void change(pixel_t *pixel, int w, int h, pixel_t *buffer) {
int average, sum; int i; pixel_t *pointer;
Everything else works fine. I keep getting an error when I call the convert function. It says "expected expression before pixel_t" and "too few arguments to function "change". I know that everything else in the main is working.
preventing a buffer overflow when dealing with strings being passed as arguments.
If I have a function prototype such as:
Code:
void foobar(char *bar);
That argument bar - is intended to take a pointer to a buffer of x characters in length. Inside that function, I can't get the size of that buffer, as bar is now just a pointer to a char. I COULD just make the user of this function pass a length parameter, but there is no guarantee that would be correct. Is there a bullet proof way of detecting that the user has provided a buffer that is too small?
I am trying to implement the insert function of a binary tree. Atm when I try and insert 3 nodes, the program breaks and gives me a stack overflow error. The error points to a getter function for an identifier for the data in my node class.
void LinkedList::add(Product *myProduct) { if (_length==0) { _head = new Node(NULL, NULL, myProduct); _end = _head; _length=1;
[Code] ....
Here is my insert function, the error message is
"An unhandled exception of type 'System.NullReferenceException' occurred in SDI2.exe Additional information: Object reference not set to an instance of an object. "
In my main I have declared an instance of product, "productToAdd = new Product(id,idPrice);" so I'm a bit confused as to what I need to include..