bsnes/snesfilter/nall/varint.hpp

119 lines
6.5 KiB
C++
Executable File

#ifndef NALL_VARINT_HPP
#define NALL_VARINT_HPP
#include <type_traits>
#include <nall/bit.hpp>
#include <nall/static.hpp>
namespace nall {
template<unsigned bits> class uint_t {
private:
unsigned data;
public:
inline operator unsigned() const { return data; }
inline unsigned operator ++(int) { unsigned r = data; data = uclip<bits>(data + 1); return r; }
inline unsigned operator --(int) { unsigned r = data; data = uclip<bits>(data - 1); return r; }
inline unsigned operator ++() { return data = uclip<bits>(data + 1); }
inline unsigned operator --() { return data = uclip<bits>(data - 1); }
inline unsigned operator =(const unsigned i) { return data = uclip<bits>(i); }
inline unsigned operator |=(const unsigned i) { return data = uclip<bits>(data | i); }
inline unsigned operator ^=(const unsigned i) { return data = uclip<bits>(data ^ i); }
inline unsigned operator &=(const unsigned i) { return data = uclip<bits>(data & i); }
inline unsigned operator<<=(const unsigned i) { return data = uclip<bits>(data << i); }
inline unsigned operator>>=(const unsigned i) { return data = uclip<bits>(data >> i); }
inline unsigned operator +=(const unsigned i) { return data = uclip<bits>(data + i); }
inline unsigned operator -=(const unsigned i) { return data = uclip<bits>(data - i); }
inline unsigned operator *=(const unsigned i) { return data = uclip<bits>(data * i); }
inline unsigned operator /=(const unsigned i) { return data = uclip<bits>(data / i); }
inline unsigned operator %=(const unsigned i) { return data = uclip<bits>(data % i); }
inline uint_t() : data(0) {}
inline uint_t(const unsigned i) : data(uclip<bits>(i)) {}
};
template<unsigned bits> class int_t {
private:
signed data;
public:
inline operator signed() const { return data; }
inline signed operator ++(int) { signed r = data; data = sclip<bits>(data + 1); return r; }
inline signed operator --(int) { signed r = data; data = sclip<bits>(data - 1); return r; }
inline signed operator ++() { return data = sclip<bits>(data + 1); }
inline signed operator --() { return data = sclip<bits>(data - 1); }
inline signed operator =(const signed i) { return data = sclip<bits>(i); }
inline signed operator |=(const signed i) { return data = sclip<bits>(data | i); }
inline signed operator ^=(const signed i) { return data = sclip<bits>(data ^ i); }
inline signed operator &=(const signed i) { return data = sclip<bits>(data & i); }
inline signed operator<<=(const signed i) { return data = sclip<bits>(data << i); }
inline signed operator>>=(const signed i) { return data = sclip<bits>(data >> i); }
inline signed operator +=(const signed i) { return data = sclip<bits>(data + i); }
inline signed operator -=(const signed i) { return data = sclip<bits>(data - i); }
inline signed operator *=(const signed i) { return data = sclip<bits>(data * i); }
inline signed operator /=(const signed i) { return data = sclip<bits>(data / i); }
inline signed operator %=(const signed i) { return data = sclip<bits>(data % i); }
inline int_t() : data(0) {}
inline int_t(const signed i) : data(sclip<bits>(i)) {}
};
class varuint_t {
private:
unsigned data;
unsigned mask;
public:
inline operator unsigned() const { return data; }
inline unsigned operator ++(int) { unsigned r = data; data = (data + 1) & mask; return r; }
inline unsigned operator --(int) { unsigned r = data; data = (data - 1) & mask; return r; }
inline unsigned operator ++() { return data = (data + 1) & mask; }
inline unsigned operator --() { return data = (data - 1) & mask; }
inline unsigned operator =(const unsigned i) { return data = (i) & mask; }
inline unsigned operator |=(const unsigned i) { return data = (data | i) & mask; }
inline unsigned operator ^=(const unsigned i) { return data = (data ^ i) & mask; }
inline unsigned operator &=(const unsigned i) { return data = (data & i) & mask; }
inline unsigned operator<<=(const unsigned i) { return data = (data << i) & mask; }
inline unsigned operator>>=(const unsigned i) { return data = (data >> i) & mask; }
inline unsigned operator +=(const unsigned i) { return data = (data + i) & mask; }
inline unsigned operator -=(const unsigned i) { return data = (data - i) & mask; }
inline unsigned operator *=(const unsigned i) { return data = (data * i) & mask; }
inline unsigned operator /=(const unsigned i) { return data = (data / i) & mask; }
inline unsigned operator %=(const unsigned i) { return data = (data % i) & mask; }
inline void bits(unsigned bits) { mask = (1U << (bits - 1)) + ((1U << (bits - 1)) - 1); data &= mask; }
inline varuint_t() : data(0), mask(~0U) {}
inline varuint_t(const unsigned i) : data(i), mask(~0U) {}
};
class varuintmax_t {
private:
uintmax_t data;
uintmax_t mask;
public:
inline operator uintmax_t() const { return data; }
inline uintmax_t operator ++(int) { uintmax_t r = data; data = (data + 1) & mask; return r; }
inline uintmax_t operator --(int) { uintmax_t r = data; data = (data - 1) & mask; return r; }
inline uintmax_t operator ++() { return data = (data + 1) & mask; }
inline uintmax_t operator --() { return data = (data - 1) & mask; }
inline uintmax_t operator =(const uintmax_t i) { return data = (i) & mask; }
inline uintmax_t operator |=(const uintmax_t i) { return data = (data | i) & mask; }
inline uintmax_t operator ^=(const uintmax_t i) { return data = (data ^ i) & mask; }
inline uintmax_t operator &=(const uintmax_t i) { return data = (data & i) & mask; }
inline uintmax_t operator<<=(const uintmax_t i) { return data = (data << i) & mask; }
inline uintmax_t operator>>=(const uintmax_t i) { return data = (data >> i) & mask; }
inline uintmax_t operator +=(const uintmax_t i) { return data = (data + i) & mask; }
inline uintmax_t operator -=(const uintmax_t i) { return data = (data - i) & mask; }
inline uintmax_t operator *=(const uintmax_t i) { return data = (data * i) & mask; }
inline uintmax_t operator /=(const uintmax_t i) { return data = (data / i) & mask; }
inline uintmax_t operator %=(const uintmax_t i) { return data = (data % i) & mask; }
inline void bits(unsigned bits) { mask = (1ULL << (bits - 1)) + ((1ULL << (bits - 1)) - 1); data &= mask; }
inline varuintmax_t() : data(0), mask(~0ULL) {}
inline varuintmax_t(const uintmax_t i) : data(i), mask(~0ULL) {}
};
}
#endif