What's the difference between &x and *x? I understand that *x is a pointer (like int *x; x is a pointer to int), but i don't understand how to use these and apply them in my codes. When would I use the & and when would I use the *?
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Anonymous
ANSWERS: 3
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Here is Microsoft's take on it. Be sure to scroll down and read and think about the examples. http://msdn.microsoft.com/en-us/library/caaw7h5s(VS.71).aspx
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* is used to declare a pointer which point the memory location of variable suppose if you declare int *mypointer and other you have int x; and you write in next line mypointer=&x; it would get the memory adress useing pointer and then using & it would not print the memory adress it would print the value stored in x labeled memory space if you dont use & then it would show the memory name like 0xff84 etc
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Example use: int *x ,a; a = 5; x= a; //x now contains the adress of a ,*x is equal to a (5) ++++++++++++++++++++++++++++++++++++++++++ int a=1; int &x =a; //Now x is a reference to a //Whenever you change a ,x is changed //X is like atwin of a.
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