vcl::OutputRange Concept Reference

Utility concept that is evaluated true the Range R is an Output Range and has a value_type that is T. More...

#include <vclib/concepts/ranges/range.h>

Concept definition

template<typename R, typename T>
concept vcl::OutputRange =  Range<R> && std::ranges::output_range<R, T> &&
                      std::same_as<std::ranges::range_value_t<R>, T>

Detailed Description

Utility concept that is evaluated true the Range R is an Output Range and has a value_type that is T.

This concept is useful when you need to check that a range has a value_type that is exactly T, and it can be modified. When this concept is satisfied the following code will always compile:

for (T& value : range) {
    // do something with value
    ...
}

Template Parameters

R	The range type.
T	The value type.