|
|
- returns the size of the array
(vector). |
apvector
<double> passwords(100);
int len;
. . .
len = passwords.length( );
// len is set to 100
|
assignment
operator
b = a |
|
- copies vector a
into vector b.
The size of b
is properly adjusted to match the size of a.
|
|
|
- lets you change the size of the
array. This function may also be used when the size of the array is
not known in advance, but is entered by the user or read from a file. |
apvector
<double> averages;
int number ;
. . .
cout<<"Enter number of averages: ";
cin>>number ;
averages.resize(number);
|
 |
An empty array was
declared. An empty array MUST
be resized in order to be used. |
|
|
If you resize an array and the new size is smaller
than the original size, the vector's tail is chopped off and the tail
elements are LOST!!!!! |
|
