libcruft-util/types/bits.hpp
Danny Robson f6056153e3 rename root namespace from util to cruft
This places, at long last, the core library code into the same namespace
as the extended library code.
2018-08-05 14:42:02 +10:00

73 lines
1.6 KiB
C++

/*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* Copyright 2011 Danny Robson <danny@nerdcruft.net>
*/
#ifndef __UTIL_TYPES_BITS_HPP
#define __UTIL_TYPES_BITS_HPP
#include <cstdint>
#include <cstddef>
namespace cruft {
template <size_t BITS>
struct bits_type;
template <> struct bits_type< 8u> {
static const bool has_floating = false;
typedef uint8_t uint;
typedef int8_t sint;
typedef uint8_t floating;
};
template <> struct bits_type<16u> {
static const bool has_floating = false;
typedef uint16_t uint;
typedef int16_t sint;
typedef uint16_t floating;
};
template <> struct bits_type<32u> {
static const bool has_floating = true;
typedef uint32_t uint;
typedef int32_t sint;
typedef float floating;
};
template <> struct bits_type<64u> {
static const bool has_floating = true;
typedef uint64_t uint;
typedef int64_t sint;
typedef double floating;
};
template <size_t BYTES>
struct bytes_type : public bits_type<BYTES * 8u>
{ };
template <typename T>
struct sized_type : public bits_type<sizeof(T) * 8u>
{ };
template <std::size_t Size>
using bits_uint_t = typename bits_type<Size>::uint;
template <std::size_t Size>
using bytes_uint_t = typename bytes_type<Size>::uint;
}
#endif