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Reference

• C library:

  • <cassert> (assert.h)
  • <cctype> (ctype.h)
  • <cerrno> (errno.h)
  • C++11
    <cfenv> (fenv.h)
  • <cfloat> (float.h)
  • C++11
    <cinttypes> (inttypes.h)
  • <ciso646> (iso646.h)
  • <climits> (limits.h)
  • <clocale> (locale.h)
  • <cmath> (math.h)
  • <csetjmp> (setjmp.h)
  • <csignal> (signal.h)
  • <cstdarg> (stdarg.h)
  • C++11
    <cstdbool> (stdbool.h)
  • <cstddef> (stddef.h)
  • C++11
    <cstdint> (stdint.h)
  • <cstdio> (stdio.h)
  • <cstdlib> (stdlib.h)
  • <cstring> (string.h)
  • C++11
    <ctgmath> (tgmath.h)
  • <ctime> (time.h)
  • C++11
    <cuchar> (uchar.h)
  • <cwchar> (wchar.h)
  • <cwctype> (wctype.h)

• Containers:

  • C++11
    <array>
  • <deque>
  • C++11
    <forward_list>
  • <list>
  • <map>
  • <queue>
  • <set>
  • <stack>
  • C++11
    <unordered_map>
  • C++11
    <unordered_set>
  • <vector>

• Input/Output:

  • <fstream>
  • <iomanip>
  • <ios>
  • <iosfwd>
  • <iostream>
  • <istream>
  • <ostream>
  • <sstream>
  • <streambuf>

• Multi-threading:

  • C++11
    <atomic>
  • C++11
    <condition_variable>
  • C++11
    <future>
  • C++11
    <mutex>
  • C++11
    <thread>

• Other:

  • <algorithm>
  • <bitset>
  • C++11
    <chrono>
  • C++11
    <codecvt>
  • <complex>
  • <exception>
  • <functional>
  • C++11
    <initializer_list>
  • <iterator>
  • <limits>
  • <locale>
  • <memory>
  • <new>
  • <numeric>
  • C++11
    <random>
  • C++11
    <ratio>
  • C++11
    <regex>
  • <stdexcept>
  • <string>
  • C++11
    <system_error>
  • C++11
    <tuple>
  • C++11
    <type_traits>
  • C++11
    <typeindex>
  • <typeinfo>
  • <utility>
  • <valarray>

<functional>

• functions

  • C++11
    bind
  • C++11
    cref
  • C++11
    mem_fn
  • not1
  • not2
  • C++11
    ref

• wrapper classes

  • binary_negate
  • C++11
    function
  • C++11
    reference_wrapper
  • unary_negate

• operator classes

  • C++11
    bit_and
  • C++11
    bit_or
  • C++11
    bit_xor
  • divides
  • equal_to
  • greater
  • greater_equal
  • less
  • less_equal
  • logical_and
  • logical_not
  • logical_or
  • minus
  • modulus
  • multiplies
  • negate
  • not_equal_to
  • plus

• other classes

  • C++11
    bad_function_call
  • C++11
    hash
  • C++11
    is_bind_expression
  • C++11
    is_placeholder

• namespaces

  • C++11
    placeholders

• deprecated

  • binary_function
  • bind1st
  • bind2nd
  • binder1st
  • binder2nd
  • const_mem_fun_ref_t
  • const_mem_fun_t
  • const_mem_fun1_ref_t
  • const_mem_fun1_t
  • mem_fun
  • mem_fun_ref
  • mem_fun_ref_t
  • mem_fun_t
  • mem_fun1_ref_t
  • mem_fun1_t
  • pointer_to_binary_function
  • pointer_to_unary_function
  • ptr_fun
  • unary_function

std::pointer_to_binary_function

template <class Arg1, class Arg2, class Result> class pointer_to_binary_function;

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template <class Arg1, class Arg2, class Result>
  class pointer_to_binary_function : public binary_function <Arg1,Arg2,Result>
{
protected:
  Result(*pfunc)(Arg1,Arg2);
public:
  explicit pointer_to_binary_function ( Result (*f)(Arg1,Arg2) ) : pfunc (f) {}
  Result operator() (Arg1 x, Arg2 y) const
    { return pfunc(x,y); }
};

Members

constructor

Constructs a binary function object class from pointer to a function that takes two arguments of types Arg1 and Arg2, and returns a value of type Result.

operator()

Member function taking two parameters, passing them to the function pointed by the pointer used at construction, and forwarding the return value obtained as its own return value.

Example

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// pointer_to_binary_function example
#include <iostream>
#include <functional>
#include <algorithm>
#include <cmath>
using namespace std;

int main () {
  pointer_to_binary_function <double,double,double> PowObject (pow);
  double numbers[] = {1.0, 2.0, 3.0, 4.0, 5.0};
  double squares[5];
  transform (numbers, numbers+5, squares, bind2nd(PowObject,2) );
  for (int i=0; i<5; i++)
    cout << squares[i] << " ";
  cout << endl;
  return 0;
}

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See also

ptr_fun

Convert function pointer to function object (function template)

pointer_to_unary_function

Generate unary function object class from pointer (class template)

unary_function

Unary function object base class (class template)