Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-04-25 17:56:43 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

yo sup dawg (nw)

Browse Source
This commit is contained in:
Vas Crabb 2017-02-02 14:17:33 +11:00
parent 421e0b233a
commit 38a6ab02e4
1 changed files with 47 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

54
src/lib/util/hashing.h
View File

@ -15,10 +15,12 @@
#include "osdcore.h" #include "osdcore.h"
#include "corestr.h" #include "corestr.h"
#include <string>
#include "md5.h" #include "md5.h"
#include "sha1.h" #include "sha1.h"
#include <functional>
#include <string>
namespace util { namespace util {
//************************************************************************** //**************************************************************************
@ -132,13 +134,23 @@ protected:
// final digest // final digest
struct crc32_t struct crc32_t
{ {
bool operator==(const crc32_t &rhs) const { return m_raw == rhs.m_raw; } crc32_t() { }
bool operator!=(const crc32_t &rhs) const { return m_raw != rhs.m_raw; } constexpr crc32_t(const crc32_t &rhs) = default;
constexpr crc32_t(const uint32_t crc) : m_raw(crc) { }
constexpr bool operator==(const crc32_t &rhs) const { return m_raw == rhs.m_raw; }
constexpr bool operator!=(const crc32_t &rhs) const { return m_raw != rhs.m_raw; }
crc32_t &operator=(const crc32_t &rhs) = default;
crc32_t &operator=(const uint32_t crc) { m_raw = crc; return *this; } crc32_t &operator=(const uint32_t crc) { m_raw = crc; return *this; }
operator uint32_t() const { return m_raw; }
constexpr operator uint32_t() const { return m_raw; }
bool from_string(const char *string, int length = -1); bool from_string(const char *string, int length = -1);
std::string as_string() const; std::string as_string() const;
uint32_t m_raw; uint32_t m_raw;
static const crc32_t null; static const crc32_t null;
}; };
@ -178,13 +190,23 @@ protected:
// final digest // final digest
struct crc16_t struct crc16_t
{ {
bool operator==(const crc16_t &rhs) const { return m_raw == rhs.m_raw; } crc16_t() { }
bool operator!=(const crc16_t &rhs) const { return m_raw != rhs.m_raw; } constexpr crc16_t(const crc16_t &rhs) = default;
constexpr crc16_t(const uint16_t crc) : m_raw(crc) { }
constexpr bool operator==(const crc16_t &rhs) const { return m_raw == rhs.m_raw; }
constexpr bool operator!=(const crc16_t &rhs) const { return m_raw != rhs.m_raw; }
crc16_t &operator=(const crc16_t &rhs) = default;
crc16_t &operator=(const uint16_t crc) { m_raw = crc; return *this; } crc16_t &operator=(const uint16_t crc) { m_raw = crc; return *this; }
operator uint16_t() const { return m_raw; }
constexpr operator uint16_t() const { return m_raw; }
bool from_string(const char *string, int length = -1); bool from_string(const char *string, int length = -1);
std::string as_string() const; std::string as_string() const;
uint16_t m_raw; uint16_t m_raw;
static const crc16_t null; static const crc16_t null;
}; };
@ -220,4 +242,22 @@ protected:
} // namespace util } // namespace util
namespace std {
template <> struct hash<::util::crc32_t>
{
typedef ::util::crc32_t argument_type;
typedef std::size_t result_type;
result_type operator()(argument_type const & s) const { return std::hash<std::uint32_t>()(s); }
};
template <> struct hash<::util::crc16_t>
{
typedef ::util::crc16_t argument_type;
typedef std::size_t result_type;
result_type operator()(argument_type const & s) const { return std::hash<std::uint16_t>()(s); }
};
} // namespace std
#endif // __HASHING_H__ #endif // __HASHING_H__