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numpy.h: fixed a leak, added some comments to buffer_info

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This commit is contained in:
Wenzel Jakob 2016-01-17 22:36:41 +01:00
parent d33361a6d7
commit e45b29047a
2 changed files with 12 additions and 9 deletions
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13
include/pybind11/common.h
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@ -143,12 +143,13 @@ PYBIND11_DECL_FMT(float, "f"); PYBIND11_DECL_FMT(double, "d"); PYBIND11_DECL
/// Information record describing a Python buffer object
struct buffer_info {
void *ptr;
size_t itemsize, size;
std::string format; // for dense contents, this should be set to format_descriptor<T>::value
int ndim;
std::vector<size_t> shape;
std::vector<size_t> strides;
void *ptr; // Pointer to the underlying storage
size_t itemsize; // Size of individual items in bytes
size_t size; // Total number of entries
std::string format; // For homogeneous buffers, this should be set to format_descriptor<T>::value
int ndim; // Number of dimensions
std::vector<size_t> shape; // Shape of the tensor (1 entry per dimension)
std::vector<size_t> strides; // Number of entries between adjacent entries (for each per dimension)
buffer_info(void *ptr, size_t itemsize, const std::string &format, int ndim,
const std::vector<size_t> &shape, const std::vector<size_t> &strides)

8
include/pybind11/numpy.h
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@ -128,9 +128,11 @@ public:
return nullptr;
API &api = lookup_api();
PyObject *descr = api.PyArray_DescrFromType_(npy_format_descriptor<T>::value);
return api.PyArray_FromAny_(ptr, descr, 0, 0,
API::NPY_C_CONTIGUOUS_ | API::NPY_ENSURE_ARRAY_ |
API::NPY_ARRAY_FORCECAST_, nullptr);
PyObject *result = api.PyArray_FromAny_(
ptr, descr, 0, 0, API::NPY_C_CONTIGUOUS_ | API::NPY_ENSURE_ARRAY_
| API::NPY_ARRAY_FORCECAST_, nullptr);
Py_DECREF(ptr);
return result;
}
};