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A pointer is a type of variable which can store the address of another object or a function.



The position of the asterisk does not affect the meaning of the definition:

/* The * operator binds to right and therefore these are all equivalent. */
int *i;
int * i;
int* i;

However, when defining multiple pointers at once, each requires its own asterisk:

int *i, *j; /* i and j are both pointers */
int* i, j;  /* i is a pointer, but j is an int not a pointer variable */

An array of pointers is also possible, where an asterisk is given before the array variable’s name:

int *foo[2]; /* foo is a array of pointers, can be accessed as *foo[0] and *foo[1] */

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