Is there a general way to debug this error with VS2010? No, there isn’t. What you have done is to somehow invoke undefined behavior. The reason these behaviors are undefined is that the general case is very hard to detect/diagnose. Sometimes it is provably impossible to do so. There are however, a somewhat smallish number … Read more
The way to think about this is to “think like a compiler”. Imagine you are writing a compiler. And you see code like this. When you are compiling the .cc file (remember that the .cc and not the .h is the unit of compilation), you need to allocate space for object A. So, well, how much space then? Enough to store B! What’s … Read more
delete [] *M; is the same as delete [] M[0], so it is not equivalent to deleting all M[i] in a loop because only the first one would be deleted. The loop is the correct way to avoid memory leaks. Or better, use std::vector instead of manual allocations and you won’t need to worry about deleting pointers.
I have been struggling for hours on end with this problem. My goal is to sort a linked list using only pointers (I cannot place linked list into vec or array and then sort). I am given the pointer to the head node of the list. The only methods i can call on the pointers … Read more
From C++11 onwards, you should prefer: Live example on Coliru Make sure to reuse the same instance of rng throughout multiple calls to std::shuffle if you intend to generate different permutations every time! Moreover, if you want your program to create different sequences of shuffles each time it is run, you can seed the constructor of the random engine … Read more
well… you forgot the (). also, in the C++ world, I would advise against writing for (int… , prefer auto or size_t instead of int. comparing signed and unsigned values can lead to errors. PS. it is extremly not common to name entities in your program in a language which is not english. also, you are mixing underscore-convention with lower camel case-convention. I’d … Read more
Just iterate over the elements. Like this: Note: As Maxim Egorushkin pointed out, this could overflow. See his comment below for a better solution.
Use std::ostream and std::istream everywhere. ostream and istream are in namespace std
const_iterators don’t allow you to change the values that they point to, regular iterators do. As with all things in C++, always prefer const, unless there’s a good reason to use regular iterators (i.e. you want to use the fact that they’re not const to change the pointed-to value).
Several ways to do so, here are some possible one-line approaches: Use getch() (need #include <conio.h>). Use getchar() (expected for Enter, need #include <iostream>). Use cin.get() (expected for Enter, need #include <iostream>). Use system(“pause”) (need #include <iostream>, Windows only).PS: This method will also print Press any key to continue . . . on the screen. (seems perfect choice for you :)) Edit: As discussed here, There is no completely portable solution for this. Question … Read more