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8ce22c666d
The check_overflow implementation now relies on std::integral_constant. This avoids the definition of a constexpr bool member.
45 lines
1023 B
C++
45 lines
1023 B
C++
//! Overflow check implementation.
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/**
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* @file Overflow.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_OVERFLOW_H
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#define CPPREG_OVERFLOW_H
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#include "Traits.h"
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#include <type_traits>
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//! cppreg::internals namespace.
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namespace cppreg {
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namespace internals {
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//! Overflow check implementation.
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/**
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* @tparam W Width of the register or field type.
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* @tparam value Value to check.
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* @tparam limit Overflow limit value.
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*
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* This structure defines a type result set to std::true_type if there is
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* no overflow and set to std::false_type if there is overflow.
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* There is overflow if value if strictly larger than limit.
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*/
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template <
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Width_t W,
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typename RegisterType<W>::type value,
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typename RegisterType<W>::type limit
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>
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struct check_overflow : std::integral_constant<bool, value <= limit> {};
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}
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}
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#endif // CPPREG_OVERFLOW_H
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