iif.h

/*  This file is part of the Vc library. {{{
Copyright © 2012-2015 Matthias Kretz <kretz@kde.org>

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#ifndef VC_COMMON_IIF_H_
#define VC_COMMON_IIF_H_

#include "../type_traits"
#include "macros.h"

namespace Vc_VERSIONED_NAMESPACE
{
template <typename Mask, typename T>
Vc_ALWAYS_INLINE enable_if<is_simd_mask<Mask>::value && is_simd_vector<T>::value, T> iif(
    const Mask &condition, const T &trueValue, const T &falseValue)
{
    T result(falseValue);
    Vc::where(condition) | result = trueValue;
    return result;
}

template <typename Mask, typename T>
enable_if<is_simd_mask<Mask>::value && !is_simd_vector<T>::value, T> iif(
    const Mask &, const T &, const T &) = delete;

template<typename T> constexpr T iif (bool condition, const T &trueValue, const T &falseValue)
{
    return condition ? trueValue : falseValue;
}

}  // namespace Vc

#endif // VC_COMMON_IIF_H_