home | login | register | DMCA | contacts | help | donate |      

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
А Б В Г Д Е Ж З И Й К Л М Н О П Р С Т У Ф Х Ц Ч Ш Щ Э Ю Я


my bookshelf | genres | recommend | rating of books | rating of authors | reviews | new | форум | collections | читалки | авторам | add
fantasy
space fantasy
fantasy is horrors
heroic
prose
  military
  child
  russian
detective
  action
  child
  ironical
  historical
  political
western
adventure
adventure (child)
child's stories
love
religion
antique
Scientific literature
biography
business
home pets
animals
art
history
computers
linguistics
mathematics
religion
home_garden
sport
technique
publicism
philosophy
chemistry
close

Loading...


Notes

[1] Stacks are a standard data structure, and are discussed in all algorithm books. See, for example, section 2.2.1 of Knuth. (D. E. Knuth, The Art of Computer Programming. Volume 1: Fundamental Algorithms, second edition. Addison-Wesley, 1973.)

[2] This restriction is the only reason for stack to exist at all. Note that any Front Insertion Sequence or Back Insertion Sequence can be used as a stack; in the case of vector, for example, the stack operations are the member functions back, push_back, and pop_back. The only reason to use the container adaptor stack instead is to make it clear that you are performing only stack operations, and no other operations.

[3] One might wonder why pop() returns void, instead of value_type. That is, why must one use top() and pop() to examine and remove the top element, instead of combining the two in a single member function? In fact, there is a good reason for this design. If pop() returned the top element, it would have to return by value rather than by reference: return by reference would create a dangling pointer. Return by value, however, is inefficient: it involves at least one redundant copy constructor call. Since it is impossible for pop() to return a value in such a way as to be both efficient and correct, it is more sensible for it to return no value at all and to require clients to use top() to inspect the value at the top of the stack.


New members | Standard Template Library Programmer`s Guide | queue < T, Sequence >







Loading...