A C++ question, I know int* foo (void) foo will return a pointer to int type how about int &foo (void) what does it return? Thank a lot!

Nov 25, 2013 · It is a pointer to function that returns int* and accepts int* and pointer to function that returns int* (and accepts undefined number of parameters; see comments).

Sep 25, 2010 · int** i (Ie, in the second case you will require two dereferrences to access the integer's value)

int* i, int * i, int*i, and int *i are all exactly equivalent. This stems from the C compiler (and it's compatible C like systems) ignoring white space in token stream generated during the process of parsing the …

Dec 30, 2011 · int a = 5; int& b = a; b = 7; cout << a; prints out 7, and replacing int& b with int &b also prints out 7. In fact so does int&b and int & b. I tested this kind of behavior with a simple class as …

I prefer int* i because i has the type "pointer to an int", and I feel this makes it uniform with the type system. Of course, the well-known behavior comes in, when trying to define multiple pointers on one …

Jun 16, 2013 · int a = int(); it value-initializes , so that it holds value . This syntax does not require the presence of a constructor for built-in types such as . Note that this form is necessary because the …

int is a primitive data type while Integer is a Reference or Wrapper Type (Class) in Java. after java 1.5 which introduce the concept of autoboxing and unboxing you can initialize both int or Integer like this.

int main (int argc, char *argv[]) In the above declaration, the type of the second parameter named argv is actually a char**. That is, argv is a pointer to a pointer to a char. This is because a char* [] decays to …

Oct 1, 2009 · For example, when you cast a pointer to an int. perform a conversion as part of the cast operation. For example, when casting a float to an int, the data is actually transformed from the form …