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git subrepo clone https://github.com/HarbourMasters/ZAPDTR.git

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subrepo:
  subdir:   "ZAPDTR"
  merged:   "a53a53ea4"
upstream:
  origin:   "https://github.com/HarbourMasters/ZAPDTR.git"
  branch:   "master"
  commit:   "a53a53ea4"
git-subrepo:
  version:  "0.4.1"
  origin:   "???"
  commit:   "???"
This commit is contained in:
M4xw 2022-03-22 02:54:48 +01:00
commit 5dda5762ba
217 changed files with 47152 additions and 0 deletions
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51
ZAPDTR/ZAPDUtils/StrHash.h Normal file
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#pragma once
#include <cstdint>
#include <cstdio>
#include <cstdlib>
typedef uint32_t strhash;
[[maybe_unused]] static strhash CRC32B(unsigned char* message, int32_t size)
{
int32_t byte = 0, crc = 0;
int32_t mask = 0;
crc = 0xFFFFFFFF;
for (int32_t i = 0; i < size; i++)
{
byte = message[i];
crc = crc ^ byte;
for (int32_t j = 7; j >= 0; j--)
{
mask = -(crc & 1);
crc = (crc >> 1) ^ (0xEDB88320 & mask);
}
}
return ~(uint32_t)(crc);
}
[[maybe_unused]] constexpr static strhash CRC32BCT(const char* message, int32_t size)
{
int32_t byte = 0, crc = 0;
int32_t mask = 0;
crc = 0xFFFFFFFF;
for (int32_t i = 0; i < size; i++)
{
byte = message[i];
crc = crc ^ byte;
for (int32_t j = 7; j >= 0; j--)
{
mask = -(crc & 1);
crc = (crc >> 1) ^ (0xEDB88320 & mask);
}
}
return ~(uint32_t)(crc);
}