Function ChopLowBits

tests/gtest/gtest-all.cc:3238–3242

Chops off the n lowest bits from a bit pattern. Returns the n lowest bits. As a side effect, the original bit pattern will be shifted to the right by n bits.

// lowest bits.  As a side effect, the original bit pattern will be
// shifted to the right by n bits.
inline UInt32 ChopLowBits(UInt32* bits, int n) {
  const UInt32 low_bits = *bits & ((static_cast<UInt32>(1) << n) - 1);
  *bits >>= n;
  return low_bits;
}

// Converts a Unicode code point to a narrow string in UTF-8 encoding.
// code_point parameter is of type UInt32 because wchar_t may not be