build/_deps/metal-src/include/metal/value/identity.hpp

#ifndef METAL_VALUE_IDENTITY_HPP
#define METAL_VALUE_IDENTITY_HPP

#include "../config.hpp"
#include "../value/eval.hpp"
#include "../value/value.hpp"

namespace metal {
/// \ingroup value
///
/// ### Description
/// The identity \expression.
///
/// ### Usage
/// For any \value `val`
/// \code
///     using result = metal::identity<val>;
/// \endcode
///
/// \returns: \value
/// \semantics:
///     Equivalent to
///     \code
///         using result = val;
///     \endcode
///
/// ### Example
/// \snippet value.cpp identity
///
/// ### See Also
/// \see value, eval
template <class val>
using identity =
#if defined(METAL_WORKAROUND)
    eval<value<val>>;
#else
    val;
#endif
}

#endif