std::experimental::ranges::UnsignedIntegral
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                    < cpp | experimental | ranges
                    
                                                            
                    |   Defined in header  <experimental/ranges/concepts>
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|   template < class T > concept bool UnsignedIntegral = Integral<T> && !SignedIntegral<T>;  | 
(ranges TS) | |
The concept UnsignedIntegral<T> is satisfied if and only if T is an integral type and std::is_signed<T>::value is false.
Notes
UnsignedIntegral<T> may be satisfied by a type that is not a unsigned integer type, for example, bool.
See also
|    (C++11)  | 
   checks if a type is an integral type   (class template)  | 
|    (C++11)  | 
   checks if a type is a signed arithmetic type   (class template)  |