---

select_both Struct Template Reference

This functional selects both the first and second members of an instance (obviously this is usually the std::pair type), and applies the respective parameterising functionals to them. More...

#include <stlsoft_functionals.h>

List of all members.

Public Methods
	select_both ()
	Default constructor.
	select_both (F1 f1, F2 f2)
	Constructs from the given function objects, which it will then apply via operator()().
template<typename T> void	operator() (T &t)
	Function call operator, which applies the parameterising function objects to the first and second parts of the pair t.

---

Detailed Description

template<typename F1, typename F2>
struct stlsoft::select_both< F1, F2 >

This functional selects both the first and second members of an instance (obviously this is usually the std::pair type), and applies the respective parameterising functionals to them.

For example, if you have a std::map and wish to write out the keys with the dump_key functional and the values with the dump_value functional, you could achieve this with the following:

  std::for_each(m.begin(), m.end(), stlsoft::select_both<dump_key, dump_value>());

Parameters:

F1	The functional to apply to the first part of the elements
F2	The functional to apply to the second part of the elements

---

Constructor & Destructor Documentation

select_both (    )  [inline]

Default constructor.

select_both (  F1    f1, F2    f2 )  [inline, explicit]

Constructs from the given function objects, which it will then apply via operator()().

---

Member Function Documentation

void operator() (  T &    t )  [inline]

Function call operator, which applies the parameterising function objects to the first and second parts of the pair t. Parameters: t  An instance of a pair like type, to whose first and second members will be applied the functions F1 and F2

---

The documentation for this struct was generated from the following file:

• stlsoft_functionals.h

STLSoft Libraries documentation © Synesis Software Pty Ltd, 2001-2004