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Use wrapper to ensure bounds #734

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Use wrapper to ensure bounds #734

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1de5123
Use wrapper to ensure bounds
oliverweissl Jul 1, 2025
ce616e4
Merge branch 'main' into safe_bounds
blankjul Jul 13, 2025
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9 changes: 9 additions & 0 deletions pymoo/core/crossover.py
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Original file line number Diff line number Diff line change
Expand Up @@ -76,4 +76,13 @@ def do(self, problem, pop, parents=None, *args, random_state=None, **kwargs):
def _do(self, problem, X, *args, random_state=None, **kwargs):
pass

@staticmethod
def safe_bounds_do(func):
@functools.wraps(func)
def wrapped_do(self, problem, X, **kwargs):
result = func(self, problem, X, **kwargs)
if np.any(result < (problem.xl or -np.inf)) or np.any(result > (problem.xu or np.inf)):
raise ValueError("The generated solution is out of bounds.")
return result
return wrapped_do

2 changes: 2 additions & 0 deletions pymoo/operators/crossover/sbx.py
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Expand Up @@ -112,6 +112,8 @@ def __init__(self,
self.prob_exch = Real(prob_exch, bounds=(0.0, 1.0), strict=(0.0, 1.0))
self.prob_bin = Real(prob_bin, bounds=(0.0, 1.0), strict=(0.0, 1.0))

@Crossover.safe_bounds_do
def _do(self, problem, X, **kwargs):
def _do(self, problem, X, *args, random_state=None, **kwargs):
_, n_matings, _ = X.shape

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