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1c27f907a5
See https://github.com/sendyne/cppreg/issues/2 for a detailed explanation. This closes #2.
56 lines
1.3 KiB
C++
56 lines
1.3 KiB
C++
//! Simple shadow value implementation.
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/**
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* @file ShadowValue.h
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* @author Nicolas Clauvelin (nclauvelin@sendyne.com)
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* @copyright Copyright 2010-2018 Sendyne Corp. All rights reserved.
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*/
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#ifndef CPPREG_SHADOWVALUE_H
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#define CPPREG_SHADOWVALUE_H
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#include "cppreg_Defines.h"
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//! cppreg namespace.
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namespace cppreg {
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//! Shadow value generic implementation.
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/**
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* @tparam Register Register type.
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* @tparam UseShadow Boolean flag indicating if shadow value is required.
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*
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* This implementation is for register which do not require shadow value.
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*/
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template <typename Register, bool UseShadow>
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struct Shadow {
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constexpr static const bool use_shadow = false;
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};
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//! Shadow value implementation.
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/**
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* @tparam Register Register type.
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*
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* This implementation is for register which do require shadow value.
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*
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* See
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*/
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template <typename Register>
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struct Shadow<Register, true> {
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static typename Register::type value;
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constexpr static const bool use_shadow = true;
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};
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template <typename Register>
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typename Register::type Shadow<Register, true>::value =
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Register::reset;
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template <typename Register>
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constexpr const bool Shadow<Register, true>::use_shadow;
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}
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#endif // CPPREG_SHADOWVALUE_H
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