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[3.14] gh-102431: Clarify constraints on operands of Decimal logical operations (GH-102836) (#140105)

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* [3.14] gh-102431: Clarify constraints on operands of Decimal logical operations (GH-102836)

Sync C/Python implementation of the decimal: logical_ops for contexts.
(cherry picked from commit 6ecf77dbde)

Co-authored-by: Sergey B Kirpichev <skirpichev@gmail.com>
This commit is contained in:
Sergey B Kirpichev 2025-10-14 16:44:30 +03:00 • committed by GitHub
parent 2142f4efcf
commit 1c55b9163b
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3 changed files with 98 additions and 12 deletions
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20
Lib/_pydecimal.py
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@ -3340,7 +3340,10 @@ def _fill_logical(self, context, opa, opb):
return opa, opb
def logical_and(self, other, context=None):
"""Applies an 'and' operation between self and other's digits."""
"""Applies an 'and' operation between self and other's digits.
Both self and other must be logical numbers.
"""
if context is None:
context = getcontext()
@ -3357,14 +3360,20 @@ def logical_and(self, other, context=None):
return _dec_from_triple(0, result.lstrip('0') or '0', 0)
def logical_invert(self, context=None):
"""Invert all its digits."""
"""Invert all its digits.
The self must be logical number.
"""
if context is None:
context = getcontext()
return self.logical_xor(_dec_from_triple(0,'1'*context.prec,0),
context)
def logical_or(self, other, context=None):
"""Applies an 'or' operation between self and other's digits."""
"""Applies an 'or' operation between self and other's digits.
Both self and other must be logical numbers.
"""
if context is None:
context = getcontext()
@ -3381,7 +3390,10 @@ def logical_or(self, other, context=None):
return _dec_from_triple(0, result.lstrip('0') or '0', 0)
def logical_xor(self, other, context=None):
"""Applies an 'xor' operation between self and other's digits."""
"""Applies an 'xor' operation between self and other's digits.
Both self and other must be logical numbers.
"""
if context is None:
context = getcontext()