C++ Primer Plus

Summarizing Pointer Points

You’ve been exposed to quite a bit of pointer knowledge lately, so let’s summarize what’s been revealed about pointers and arrays to date.

Declaring Pointers

To declare a pointer to a particular type, use this form:

typeName * pointerName;

Here are some examples:

double * pn;      // pn can point to a double valuechar * pc;        // pc can point to a char value

Here pn and pc are pointers, and double * and char * are the C++ notations for the types pointer-to-double and pointer-to-char.

Assigning Values to Pointers

You should assign a memory address to a pointer. You can apply the & operator to a variable name to get an address of named memory, and the new operator returns the address of unnamed memory.

Here are some ...