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Removes unused code from lib/bits.h

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This commit is contained in:
Vladislav Belov
2026-09-21 00:47:17 +02:00
parent 2c68f7e426
commit 63016196ce
1 changed files with 0 additions and 47 deletions
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source/lib/bits.h
-47
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@@ -112,37 +112,6 @@ inline T bits(T num, size_t lo_idx, size_t hi_idx)
return result;
}
/**
* set the value of bits hi_idx:lo_idx
*
* @param lo_idx bit index of lowest bit to include
* @param hi_idx bit index of highest bit to include
* @param value new value to be assigned to these bits
**/
template<typename T>
inline T SetBitsTo(T num, size_t lo_idx, size_t hi_idx, size_t value)
{
const size_t numBits = (hi_idx - lo_idx)+1;
ASSERT(value < (T(1) << numBits));
const T mask = bit_mask<T>(numBits) << lo_idx;
T result = num & ~mask;
result = T(result | (value << lo_idx));
return result;
}
template<typename T>
inline T LeastSignificantBit(T x)
{
const T negX = T(~x + 1); // 2's complement (avoids 'negating unsigned type' warning)
return x & negX;
}
template<typename T>
inline T ClearLeastSignificantBit(T x)
{
return x & (x-1);
}
/**
* round number up/down to the next given multiple.
*
@@ -173,20 +142,4 @@ inline T round_down(T n, T multiple)
// for constant static data members.
#define ROUND_UP(n, multiple) (((n) + (multiple)-1) & ~((multiple)-1))
template<typename T>
inline T MaxPowerOfTwoDivisor(T value)
{
ASSERT(value != T(0));
for(size_t log2 = 0; log2 < sizeof(T)*CHAR_BIT; log2++)
{
if(IsBitSet(value, log2))
return T(1) << log2;
}
DEBUG_WARN_ERR(ERR::LOGIC); // unreachable (!= 0 => there is a set bit)
return 0;
}
#endif // #ifndef INCLUDED_BITS