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* Added Builtin Voltage * Update builtin_voltage.py * Update electronics/builtin_voltage.py Co-authored-by: Caeden Perelli-Harris <caedenperelliharris@gmail.com> * Update electronics/builtin_voltage.py Co-authored-by: Caeden Perelli-Harris <caedenperelliharris@gmail.com> * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * Apply suggestions from code review Co-authored-by: Caeden Perelli-Harris <caedenperelliharris@gmail.com> * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * Create elf.py Co-authored-by: Caeden Perelli-Harris <caedenperelliharris@gmail.com> Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com> Co-authored-by: Christian Clauss <cclauss@me.com>
22 lines
440 B
Python
22 lines
440 B
Python
def elf_hash(data: str) -> int:
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"""
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Implementation of ElfHash Algorithm, a variant of PJW hash function.
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>>> elf_hash('lorem ipsum')
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253956621
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"""
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hash_ = x = 0
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for letter in data:
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hash_ = (hash_ << 4) + ord(letter)
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x = hash_ & 0xF0000000
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if x != 0:
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hash_ ^= x >> 24
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hash_ &= ~x
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return hash_
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if __name__ == "__main__":
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import doctest
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doctest.testmod()
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