C++ In a Nutshell

Name

bind2nd function template — Creates a binder2nd function object

Synopsis

template <typename Operation, typename T>
binder2nd<Operation> bind2nd(const Operation& op, const T& x);

The bind2nd function is a convenient way to construct a binder2nd object. Use bind2nd when you have a binary function and always want to supply the same value as the first argument to the function.

Example

Suppose you have a container of data points, and you want to count the number of points that exceed a threshold. Here is one way to do this:

std::cout << std::count_if(data.begin(  ), data.end(  ),
             std::bind2nd(std::greater<double>(  ), threshold)) << '\n';

See Also

bind1st function template, binder2nd class template