is_approx.hpp

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// SPDX-License-Identifier: BSD-2-Clause
 
#ifndef pRC_CORE_VALUE_FUNCTIONS_IS_APPROX_H
#define pRC_CORE_VALUE_FUNCTIONS_IS_APPROX_H
 
#include <prc/core/functors/relative_error.hpp>
#include <prc/core/value/functions/relative_error.hpp>
#include <prc/core/value/limits.hpp>
 
namespace pRC
{
    template<class XE, class XA, IsValue TT = Value<RemoveReference<XE>>>
        requires IsInvocable<RelativeError, XE, XA>
    static inline constexpr auto isApprox(XE &&expected, XA &&approx,
        TT const &tolerance = NumericLimits<TT>::tolerance())
    {
        return relativeError(expected, approx) <= tolerance;
    }
}
#endif // pRC_CORE_VALUE_FUNCTIONS_IS_APPROX_H