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    <p>Yeah that can be quite complicated since the <code>*</code> is used for many different purposes in C/C++.</p> <p>If <code>*</code> appears in front of an already declared variable/function, it means either that:</p> <ul> <li>a) <code>*</code> gives access to the value of that variable (if the type of that variable is a pointer type, or overloaded the <code>*</code> operator).</li> <li>b) <code>*</code> has the meaning of the multiply operator, in that case, there has to be another variable to the left of the <code>*</code></li> </ul> <p>If <code>*</code> appears in a variable or function declaration it means that that variable is a pointer:</p> <pre><code>int int_value = 1; int * int_ptr; //can point to another int variable int int_array1[10]; //can contain up to 10 int values, basically int_array1 is an pointer aswell which points to the first int of the array //int int_array2[]; //illegal, without initializer list.. int int_array3[] = {1,2,3,4,5}; // these two int int_array4[5] = {1,2,3,4,5}; // are indentical void func_takes_int_ptr1(int *int_ptr){} // these two are indentical void func_takes int_ptr2(int int_ptr[]){}// and legal </code></pre> <p>If <code>&amp;</code> appears in an variable or function declaration, it generally means that that variable is an reference to an variable of that type.</p> <p>If <code>&amp;</code> appears in front of an already declared variable, it returns the address of that variable</p> <p>Additionally you should know, that when passing an array to a function, you will always have to pass the array size of that array aswell, except when the array is something like a 0-terminated cstring (char array).</p>
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    1. POPointers in C: when to use the ampersand and the asterisk?
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