CSE 332: C++ STL functio n obje cts Overview of STL Function Objects Function Object (also known as a Functor ) ± STL Function Objects support function call syntax E.g., a class that declare s and de fi nes operator() E. g., by b eing a f unction pointer ± GoF Command pattern may be applied to classes and structs (user-defined types) Enca ps ul ate a f unct io n ca ll as an ob ject Some or all of th ese can be member vari ab les ± Target ob ject reference, f unction to invoke, argument s Generic programming allows diverse t ypes ± A functi on poin ter (e xa mp le f rom Li ppma n, L aJoi e, Mo o) bool (*pf) (const string &, const & string) // function pointer bool *pf (const string &, const & string) // function named pf ± An instance of a cl ass providing operator()
Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
8/8/2019 17C C++ Function Objects
http://slidepdf.com/reader/full/17c-c-function-objects 1/22
8/8/2019 17C C++ Function Objects
http://slidepdf.com/reader/full/17c-c-function-objects 2/22
8/8/2019 17C C++ Function Objects
http://slidepdf.com/reader/full/17c-c-function-objects 3/22
8/8/2019 17C C++ Function Objects
http://slidepdf.com/reader/full/17c-c-function-objects 4/22
8/8/2019 17C C++ Function Objects
http://slidepdf.com/reader/full/17c-c-function-objects 5/22
8/8/2019 17C C++ Function Objects
http://slidepdf.com/reader/full/17c-c-function-objects 6/22
8/8/2019 17C C++ Function Objects
http://slidepdf.com/reader/full/17c-c-function-objects 7/22
8/8/2019 17C C++ Function Objects
http://slidepdf.com/reader/full/17c-c-function-objects 8/22
8/8/2019 17C C++ Function Objects
http://slidepdf.com/reader/full/17c-c-function-objects 9/22
8/8/2019 17C C++ Function Objects
http://slidepdf.com/reader/full/17c-c-function-objects 10/22
8/8/2019 17C C++ Function Objects
http://slidepdf.com/reader/full/17c-c-function-objects 11/22
8/8/2019 17C C++ Function Objects
http://slidepdf.com/reader/full/17c-c-function-objects 12/22
8/8/2019 17C C++ Function Objects
http://slidepdf.com/reader/full/17c-c-function-objects 13/22
8/8/2019 17C C++ Function Objects
http://slidepdf.com/reader/full/17c-c-function-objects 14/22
8/8/2019 17C C++ Function Objects
http://slidepdf.com/reader/full/17c-c-function-objects 15/22
8/8/2019 17C C++ Function Objects
http://slidepdf.com/reader/full/17c-c-function-objects 16/22
8/8/2019 17C C++ Function Objects
http://slidepdf.com/reader/full/17c-c-function-objects 17/22
8/8/2019 17C C++ Function Objects
http://slidepdf.com/reader/full/17c-c-function-objects 18/22
8/8/2019 17C C++ Function Objects
http://slidepdf.com/reader/full/17c-c-function-objects 19/22
8/8/2019 17C C++ Function Objects
http://slidepdf.com/reader/full/17c-c-function-objects 20/22
8/8/2019 17C C++ Function Objects
http://slidepdf.com/reader/full/17c-c-function-objects 21/22
8/8/2019 17C C++ Function Objects
http://slidepdf.com/reader/full/17c-c-function-objects 22/22
Related Documents
