Plan 9 from Bell Labs’s /usr/web/sources/contrib/anothy/src/lib/djb-ape/byte/uint16_unpack.c

Copyright © 2021 Plan 9 Foundation.
Distributed under the MIT License.
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#include "uint16.h"

void uint16_unpack(const char s[2],uint16 *u)
{
  uint16 result;

  result = (unsigned char) s[1];
  result <<= 8;
  result += (unsigned char) s[0];

  *u = result;
}

void uint16_unpack_big(const char s[2],uint16 *u)
{
  uint16 result;

  result = (unsigned char) s[0];
  result <<= 8;
  result += (unsigned char) s[1];

  *u = result;
}

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