520389e3
 xiaoyu
接入cocos源码，编译未通过，继续修改
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#pragma once
#include <type_traits>
namespace cocos2d{
template<typename Enum>
struct EnableBitMaskOperators
{
static const bool enable = false;
};
template<typename Enum>
typename std::enable_if<EnableBitMaskOperators<Enum>::enable, Enum>::type
operator |(Enum lhs, Enum rhs)
{
using underlying = typename std::underlying_type<Enum>::type;
return static_cast<Enum> (
static_cast<underlying>(lhs) |
static_cast<underlying>(rhs)
);
}
template<typename Enum>
typename std::enable_if<EnableBitMaskOperators<Enum>::enable, bool>::type
operator ==(Enum lhs, Enum rhs)
{
using underlying = typename std::underlying_type<Enum>::type;
static_cast<underlying>(lhs) == static_cast<underlying>(rhs);
}
template<typename Enum>
typename std::enable_if<EnableBitMaskOperators<Enum>::enable, Enum>::type&
operator |=(Enum& lhs, Enum rhs)
{
using underlying = typename std::underlying_type<Enum>::type;
lhs = static_cast<Enum> (
static_cast<underlying>(lhs) |
static_cast<underlying>(rhs)
);
return lhs;
}
template<typename Enum>
typename std::enable_if<EnableBitMaskOperators<Enum>::enable, unsigned int>::type
operator &(Enum lhs, Enum rhs)
{
using underlying = typename std::underlying_type<Enum>::type;
using impl_type = typename std::make_unsigned<underlying>::type;
return impl_type (
static_cast<impl_type>(lhs) &
static_cast<impl_type>(rhs)
);
}
#define ENABLE_BITMASK_OPERATORS(x) \
template<> \
struct EnableBitMaskOperators<x> \
{ \
static const bool enable = true; \
};
} // end of namespace cocos2d{
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