std::experimental::ranges::Mergeable
From cppreference.com
< cpp | experimental | ranges
C++
Feature test macros (C++20)
Concepts library (C++20)
Metaprogramming library (C++11)
Ranges library (C++20)
Filesystem library (C++17)
Concurrency support library (C++11)
Execution control library (C++26)
Experimental
Filesystem library (filesystem TS)
Library fundamentals (library fundamentals TS)
Library fundamentals 2 (library fundamentals TS v2)
Library fundamentals 3 (library fundamentals TS v3)
Extensions for parallelism (parallelism TS)
Extensions for parallelism 2 (parallelism TS v2)
Extensions for concurrency (concurrency TS)
Extensions for concurrency 2 (concurrency TS v2)
Concepts (concepts TS)
Ranges (ranges TS)
Reflection (reflection TS)
Mathematical special functions (special functions TR)
Iterators library
Iterator concepts
Indirect callable concepts
Common algorithm requirements
Concept utilities
Iterator utilities and operations
Iterator traits
Iterator adaptors
Stream iterators
template< class I1, class I2, class Out, class R = ranges::less <>,
(ranges TS)
class P1 = ranges::identity, class P2 = ranges::identity >
concept bool Mergeable =
InputIterator<I1> &&
InputIterator<I2> &&
WeaklyIncrementable<Out> &&
IndirectlyCopyable<I1, Out> &&
IndirectlyCopyable<I2, Out> &&
The Mergeable concept specifies the common requirements of algorithms that merge sorted sequences into an output sequence by copying the elements (for example, ranges::merge).