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#pragma once
typedef unsigned short size_t;
typedef int ssize_t;
typedef unsigned char uint8_t;
typedef unsigned short uint16_t;
constexpr uint16_t uint16_t_min = 0;
constexpr uint16_t uint16_t_max = 0xffff;
typedef unsigned int uint32_t;
typedef unsigned long long int uint64_t;
typedef char int8_t;
typedef short int16_t;
typedef int int32_t;
typedef long long int int64_t;
/* in x86:
* byte: 1 byte, 8 bits
* word: 2 bytes, 16 bits
* dword: 4 bytes, 32 bits
* qword: 8 bytes, 64 bits
* */
typedef uint16_t uword_t;
typedef int16_t word_t;
// Type Traits
template <class T, T v>
struct integral_constant {
constexpr T operator()() const { return v; }
constexpr operator T() const { return v; }
static const T value = v;
};
/* is_same */
template <class T, class U>
struct is_same : integral_constant<bool, false> {};
template <class T>
struct is_same<T, T> : integral_constant<bool, true> {};
/* is_unsigned */
template <typename T>
struct is_unsigned : integral_constant<bool, (T{0} < static_cast<T>(-1))> {};
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