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ENH: Optimize `np.empty` for scalar arguments#20175

Merged

seberg merged 39 commits intonumpy:mainfrom

fandreuz:optimize-scalar

May 6, 2022

Commits on Dec 13, 2021

ENH: New function 'PyArray_IntpFromScalar'. Detect scalars early on in 'PyArray_IntpConverter'

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ENH: Refactor code to use PySequence_Fast

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use IntpFromSequence also in IntpFromIndexSequence loop

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better name for nd in scalar branch

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refactor PyArray_PyIntAsIntp -> intp_from_scalar: return actual value. move up. remove from header file

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refactor error handling

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collapse error handling in PySequence_Fast

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remove unused variable

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doxygen for PyArray_IntpFromSequence, convert to PySequence_Fast in PyArray_IntpFromSequence

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ENH: improve error handling

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TST: test PyArray_IntpConverter and PyArray_IntpFromSequence

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PySequence_Fast_GET_SIZE never fails. code/comments cleanup

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fix missing cleanup

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fix number of spaces

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simplify intp_from_scalar

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more user-friendly error message

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invert order of evaluation for sequences and scalars

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fix failing test

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test that np.array(3) is accepted

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refactor error check to uses error_converting

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enforce NumPy C-style (curly braces, else on newline)

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align stars in comments

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remove unused error check (memory allocation on stack)

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intp_from_scalar -> dimension_from_scalar

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free dummy_dims.ptr. test_scalar_intp_converter: return value from PyArray_IntTupleFromIntp

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fix spacing

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refactor error check

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fix star alignment

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fix test cases (improve test_0d_array_shape)

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add error message to all-else-failed branch in PyArray_IntpConverter. improve error message in PyArray_IntpFromSequence

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fix error handling to deliver the proper exception when an overflow occurs

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refactor structure (try .. except) of PyArray_IntpFromSequence to match the PyArray_IntpConverter one. overflow tests

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enforce else convention

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MAINT: Small tweaks and fixups
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ENH,TST: Refactor error messages and tests
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Commits on Feb 21, 2022

Merge branch 'main' into optimize-scalar
seberg
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Commits on May 6, 2022