REWF A a Int a

gistfile1.cpp

/*	
AdrianH
re: what is the difference between int& and int
hello,

In some code i see some definitions like that "int& a" and I wonder what is the difference with "int a".

By the way, is it different between "char* c" and "char *c "

Thank you very much and best regards,
starbucks
:smirk: Newbies. LOL, JK.

Seriously, your question is one that some people have difficulties with. C/C++ don't care about whitespaces and even less about whitespaces or lack thereof between punctuation and words/punctuation.
Expand|Select|Wrap|Line Numbers
*/
    char* c;

/*is equivalent to
Expand|Select|Wrap|Line Numbers*/

    char *c;

/*is equivalent to
Expand|Select|Wrap|Line Numbers*/

    char*c;

/*is equivalent to
Expand|Select|Wrap|Line Numbers*/

    char
     
    *
     
     
    c;

/*As for int& a, that is a declaration of a reference to an int. It is required to be initialised to something, unlike a int * which you don't have to initialise (though you probably should). Think of it like borrowing an int, or aliasing an int. Take this for example:
Expand|Select|Wrap|Line Numbers*/

    int a = 5;
    int & refA = a;
    refA = 6;
    printf("a == %d, refA == %d\n", a, refA);
    printf("%p == %p", &a, &refA);
     
/*
You can reference any type, be it a base type or user defined type.

Hope this helps. Oh, and the only stupid question is the unasked one. Don't feel bad, I'm just in a weird mood. ;)


Adrian */