When used as an lvalue , care must be taken so as not to disturb the sortedness of the collection. The first variant can be used as an lvalue , the second cannot. The index i must be between 0 and the length of the vector less one, or an exception of type RW BoundsError will be thrown. When used as an lvalue , care must be taken so as not to disturb the sortedness of the collection. A binary search is done.
Equality is measured by the class-defined equality operator.
Returns a pointer to the raw data of the vector. The contents should not be changed. Should be used with care. Performs a binary search and returns TRUE if the vector contains an object that is equal to the object target and puts a copy of the matching object into ret . Equality is measured by the class-defined equality operator.