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https://github.com/libretro/RetroArch
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73 lines
3.6 KiB
C++
73 lines
3.6 KiB
C++
#pragma once
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#include <ostream>
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#include <type_traits>
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#include "utils.h"
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template<typename Type>
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class be_val
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{
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public:
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static_assert(!std::is_array<Type>::value, "be_val invalid type: array");
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static_assert(!std::is_pointer<Type>::value, "be_val invalid type: pointer");
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static_assert(sizeof(Type) == 1 || sizeof(Type) == 2 || sizeof(Type) == 4 || sizeof(Type) == 8, "be_val invalid type size");
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be_val()
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{
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}
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be_val(Type value)
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{
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*this = value;
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}
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Type value() const
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{
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return byte_swap(mValue);
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}
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operator Type() const
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{
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return value();
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}
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template<typename Other> std::enable_if_t<std::is_assignable<Type&, Other>::value, be_val&>
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operator =(const Other &rhs)
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{
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mValue = byte_swap(static_cast<Type>(rhs));
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return *this;
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}
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be_val &operator++() { *this = value() + 1; return *this; }
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be_val &operator--() { *this = value() - 1; return *this; }
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be_val operator--(int) { auto old = *this; *this = value() - 1; return old; }
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be_val operator++(int) { auto old = *this; *this = value() + 1; return old; }
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template<typename Other> bool operator == (const Other &rhs) const { return value() == static_cast<Type>(rhs); }
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template<typename Other> bool operator != (const Other &rhs) const { return value() != static_cast<Type>(rhs); }
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template<typename Other> bool operator >= (const Other &rhs) const { return value() >= static_cast<Type>(rhs); }
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template<typename Other> bool operator <= (const Other &rhs) const { return value() <= static_cast<Type>(rhs); }
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template<typename Other> bool operator > (const Other &rhs) const { return value() > static_cast<Type>(rhs); }
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template<typename Other> bool operator < (const Other &rhs) const { return value() < static_cast<Type>(rhs); }
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template<typename Other> be_val &operator+=(const Other &rhs) { *this = static_cast<Type>(value() + rhs); return *this; }
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template<typename Other> be_val &operator-=(const Other &rhs) { *this = static_cast<Type>(value() - rhs); return *this; }
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template<typename Other> be_val &operator*=(const Other &rhs) { *this = static_cast<Type>(value() * rhs); return *this; }
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template<typename Other> be_val &operator/=(const Other &rhs) { *this = static_cast<Type>(value() / rhs); return *this; }
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template<typename Other> be_val &operator%=(const Other &rhs) { *this = static_cast<Type>(value() % rhs); return *this; }
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template<typename Other> be_val &operator|=(const Other &rhs) { *this = static_cast<Type>(value() | rhs); return *this; }
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template<typename Other> be_val &operator&=(const Other &rhs) { *this = static_cast<Type>(value() & rhs); return *this; }
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template<typename Other> be_val &operator^=(const Other &rhs) { *this = static_cast<Type>(value() ^ rhs); return *this; }
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template<typename Other> Type operator+(const Other &rhs) const { return static_cast<Type>(value() + rhs); }
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template<typename Other> Type operator-(const Other &rhs) const { return static_cast<Type>(value() - rhs); }
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template<typename Other> Type operator*(const Other &rhs) const { return static_cast<Type>(value() * rhs); }
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template<typename Other> Type operator/(const Other &rhs) const { return static_cast<Type>(value() / rhs); }
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template<typename Other> Type operator%(const Other &rhs) const { return static_cast<Type>(value() % rhs); }
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template<typename Other> Type operator|(const Other &rhs) const { return static_cast<Type>(value() | rhs); }
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template<typename Other> Type operator&(const Other &rhs) const { return static_cast<Type>(value() & rhs); }
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template<typename Other> Type operator^(const Other &rhs) const { return static_cast<Type>(value() ^ rhs); }
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protected:
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Type mValue {};
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};
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