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#include "coding/hex.hpp"
#include "base/assert.hpp"
namespace impl
{
static const char kToHexTable[] = "0123456789ABCDEF";
void ToHexRaw(void const * src, size_t size, void * dst)
{
uint8_t const * ptr = static_cast<uint8_t const *>(src);
uint8_t const * end = ptr + size;
uint8_t * out = static_cast<uint8_t*>(dst);
while (ptr != end)
{
*out++ = kToHexTable[(*ptr) >> 4];
*out++ = kToHexTable[(*ptr) & 0xF];
++ptr;
}
}
uint8_t HexDigitToRaw(uint8_t const digit)
{
if (digit >= '0' && digit <= '9')
return (digit - '0');
else if (digit >= 'A' && digit <= 'F')
return (digit - 'A' + 10);
else if (digit >= 'a' && digit <= 'f')
return (digit - 'a' + 10);
ASSERT(false, (digit));
return 0;
}
void FromHexRaw(void const * src, size_t size, void * dst)
{
uint8_t const * ptr = static_cast<uint8_t const *>(src);
uint8_t const * end = ptr + size;
uint8_t * out = static_cast<uint8_t*>(dst);
while (ptr < end)
{
*out = HexDigitToRaw(*ptr++) << 4;
*out |= HexDigitToRaw(*ptr++);
++out;
}
}
}
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