ww int'l digital charge - Health Topics
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! int** i (Ie, in the second case you will require two dereferrences to access the integer's value) c++ - Difference between the int * i and int** i - Stack Overflow 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).
Understanding the Context
c - type of int * (*) (int * , int * (*) ()) - Stack Overflow 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 source code. c - difference between int* i and int *i - Stack Overflow 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.
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Key Insights
I tested this kind of behavior with a simple class as well. In general, does it ever matter whether the ampersand is placed relative to the type and identifier? Thanks.