Pls give me the webpage address for the discussion you want me to read. When working on a problem, try solving it on your own first and ask for help on specific parts you're stuck with. Such inconsistent results are to be expected when an attempt is made to use code which is not supported in a given version of a particular compiler. Asking conceptual questions Many conceptual questions have already been asked and answered. I think what I need is some kind of way to forward declare a function pointer type and then redefine it properly. It's got to account for all situations! In short, link to only your code and be specific about what you want feedback on. Just out of curiosity, what value are you expecting the last cout to produce? Going back to your original code, given the number of elements in array0, what possible integer could be a valid subscript? There're quite a few problems: Firstly, you're refering to your arrays with their dimensions attached, which is wrong.
When that statement is commented out, the compile is successful. Otherwise you are accessing an offset from the array that's out of bounds of the array too. Why do you continue to print out elements you know must be zero? That's why I am so confused. So, what happens when you try to access row 3 column 2 of that array? Hi Barry I am a bit confused. .
The only way he can do that is if he calculates the index himself! Mar 6, 2015 I need to create the following brain damaging abomination: I need a function pointer type to a function that has an argument of the same function pointer type and returns the same function pointer type. Internally, what the compiler does is multiplies the row you want to access by the number of columns and adds to that the column you want to access. For example, if you go to: ideone. On the other hand, if you tell us what you want to do rather than how you intend to do it, we may be able to offer better suggestions. The error is driven from the call to resize. I'm using Visual Studios 2010. By what delusion do you think an object of type vector of A can be used to initialize an object of type array of int? Sep 8, 2014 Does uses of pointer in char type cause extra overhead? Why would you think that? Mar 30, 2014 I am having trouble with the array pointer and with the variables.
I compiles and runs under gcc. Do you actually have an application where you need a vector of arrays but cannot use a vector of vectors or a vector of struct. As I stated in an earlier post, the exact results e. It knows how many columns there are from the declaration of the array. This is one of those situations where the distinction between an array and a pointer makes all the difference.
Hi Barry It is not obvious to me. So, first i create the number of sequences which is n, then i also create the index for each sequence. This is why you can't use 2 subscipts on it when tying to access an element of the array. In short, your posting history should not be predominantly self-promotional and your resource should be high-quality and complete. If not, what is it? The problem is that if you use a pointer to an int to store the first element of that array, you lose all that information about the number of columns! Is it because there exist three elements in array0 n the vector can not grow larger so it can not push back? Why are you testing this in a program with over 2400 lines? Read our and search old posts before asking your question.
What I'm guessing you wanted to do was account for arrays of multiple dimensions and use rows and cols as the information about the dimensions to access the elements in the arrays, but if that's the case, you are doing something extremely different. The problem arises in the function sumsquares, it supposed to take address of the array , rows and columns as parameters. Do not include a link to a final product or to a demo in your post. But to be honest, you seem to just be messing up a lot of logic in that function. Asking for code reviews is ok as long as you. After all, its behavior is undefined.
See our for more details. However, compiler tells me there is no notation of an array pointer inside the function. Last, i enter the elements for each sequence. Each vector in the array can have a different number of elements. I'm sure it's just something small that I've left out, but I just can't figure out what it is.
In order for that to happen, you need to have more than one vector. Communicate to others the same way you would at your workplace. Give me a clue please. See our for more details. The function calculates the sum of squares of all integers in the array each int is squared and then they are all added up. It very much depends on which compiler and which version you're using.