Return the position of the leftmost bit set.
Source position: syshelph.inc line 1557
| public function TNativeUIntHelper.HighestSetBitPos: Int8; | 
HighestSetBitPos scans the NativeUInt, starting at the leftmost position and working towards position 0, and returns the index of the first set bit. The position is measured from the 0-th, rightmost bit. When there are no bits set, the result is -1.
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 | Return the position of the leftmost set bit in an 8-bit value. | |
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 | Set bit to 1. | |
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 | Set bit to 0. | |
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 | Invert bit. | |
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 | Check bit. | |
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 | Return the position of the rightmost bit set. | |
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 | Count number of bits set. | |
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 | Read or write a bit. |