#unsigned char array[32] >> 5

6 messages · Page 1 of 1 (latest)

daring viperBOT
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sacred perch
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How can I shift all bits of an array?

clear pond
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void fives (unsigned char *eight, unsigned char *five, int n) {
  int bits = 0;
  int value = 0;
  do {
    if (n == 0) return;
    if (bits < 5) value |= (*eight++) << bits, bits += 8, n--;
    *five++ = value & 31;
    value >>= 5;
    bits -= 5;
  } while (1);
}
sacred perch
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I wanted to create my own base32 converter @clear pond

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[It does not need to be accurate for the last 1-4 bits]