44 lines
1.6 KiB
C
44 lines
1.6 KiB
C
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#ifndef NUMBA_COMMON_H_
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#define NUMBA_COMMON_H_
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/* __has_attribute() is a clang / gcc-5 macro */
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#ifndef __has_attribute
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# define __has_attribute(x) 0
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#endif
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/* This attribute marks symbols that can be shared across C objects
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* but are not exposed outside of a shared library or executable.
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* Note this is default behaviour for global symbols under Windows.
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*/
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#if defined(_MSC_VER)
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#define VISIBILITY_HIDDEN
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#define VISIBILITY_GLOBAL __declspec(dllexport)
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#elif (__has_attribute(visibility) || (defined(__GNUC__) && __GNUC__ >= 4))
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#define VISIBILITY_HIDDEN __attribute__ ((visibility("hidden")))
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#define VISIBILITY_GLOBAL __attribute__ ((visibility("default")))
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#else
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#define VISIBILITY_HIDDEN
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#define VISIBILITY_GLOBAL
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#endif
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/*
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* Numba's version of the PyArray_DescrCheck macro from NumPy, use it as a
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* direct replacement of NumPy's PyArray_DescrCheck to ensure binary
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* compatibility.
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*
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* Details of why this is needed:
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* NumPy 1.18 changed the definition of the PyArray_DescrCheck macro here:
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* https://github.com/numpy/numpy/commit/6108b5d1e138d07e3c9f2a4e3b1933749ad0e698
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* the result of this being that building against NumPy <1.18 would prevent
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* Numba running against NumPy >= 1.20 as noted here:
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* https://github.com/numba/numba/issues/6041#issuecomment-665132199
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*
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* This macro definition is copied from:
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* https://github.com/numpy/numpy/commit/6108b5d1e138d07e3c9f2a4e3b1933749ad0e698#diff-ad2213da23136c5fc5883d9eb2d88666R26
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*
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* NOTE: This is the NumPy 1.18 and above version of the macro.
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*/
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#define NUMBA_PyArray_DescrCheck(op) PyObject_TypeCheck(op, &PyArrayDescr_Type)
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#endif /* NUMBA_COMMON_H_ */
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