258 constexpr T GetIntLimit(size_t bits) {  in GetIntLimit()  argument
259   DCHECK_NE(bits, 0u);  in GetIntLimit()
260   DCHECK_LT(bits, BitSizeOf<T>());  in GetIntLimit()
261   return static_cast<T>(1) << (bits - 1);  in GetIntLimit()
305 constexpr T MaxInt(size_t bits) {  in MaxInt()  argument
306   DCHECK(std::is_unsigned<T>::value || bits > 0u) << "bits cannot be zero for signed.";  in MaxInt()
307   DCHECK_LE(bits, BitSizeOf<T>());  in MaxInt()
309   return bits == BitSizeOf<T>()  in MaxInt()
312           ? ((bits == 1u) ? 0 : static_cast<T>(MaxInt<unsigned_type>(bits - 1)))  in MaxInt()
313           : static_cast<T>(UINT64_C(1) << bits) - static_cast<T>(1);  in MaxInt()
317 constexpr T MinInt(size_t bits) {  in MinInt()  argument
318   DCHECK(std::is_unsigned<T>::value || bits > 0) << "bits cannot be zero for signed.";  in MinInt()
319   DCHECK_LE(bits, BitSizeOf<T>());  in MinInt()
320   return bits == BitSizeOf<T>()  in MinInt()
323           ? ((bits == 1u) ? -1 : static_cast<T>(-1) - MaxInt<T>(bits))  in MinInt()
391 inline static constexpr std::make_unsigned_t<T> MaskLeastSignificant(size_t bits) {  in MaskLeastSignificant()  argument
392   DCHECK_GE(BitSizeOf<T>(), bits) << "Bits out of range for type T";  in MaskLeastSignificant()
394   if (bits >= BitSizeOf<T>()) {  in MaskLeastSignificant()
398     return static_cast<unsigned_T>((kOne << bits) - kOne);  in MaskLeastSignificant()