Initializing 2D char array in C

I think pictures help. Here is char newarray[5][10]. It is a single memory block consisting of an array of 10 characters, and an array of five of those. You could just clear it with a single memset call. Here is char **array. It says array is a pointer. What is it a pointer to? a pointer to a character. Keep in … Read more

Initializing pointers in C++

Yes, you can initialize pointers to a value on declaration, however you can’t do: & is the address of operator and you can’t apply that to a constant (although if you could, that would be interesting). Try using another variable: or type-casting:

too many initializers for ‘int [0]’ c++

In C++11, in-class member initializers are allowed, but basically act the same as initializing in a member initialization list. Therefore, the size of the array must be explicitly stated. Stroustrup has a short explanation on his website here. The error message means that you are providing too many items for an array of length 0, … Read more

What is an method in Java? Can it be overridden?

Have a look at the Java Virtual Machine Specification, chapter 2.9. It say on the <init> name: At the level of the Java Virtual Machine, every constructor written in the Java programming language (JLS §8.8) appears as an instance initialization method that has the special name <init>. This name is supplied by a compiler. Because … Read more

C char array initialization

This is not how you initialize an array, but for: The first declaration: char buf[10] = “”; is equivalent to char buf[10] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; The second declaration: char buf[10] = ” “; is equivalent to char buf[10] = {‘ ‘, 0, 0, 0, 0, 0, 0, … Read more