lsst.utils
13.0-12-gac01bb5+4
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Functions | |
template<typename T , typename PyClass > | |
void | addSharedPtrEquality (PyClass &cls) |
Add __eq__ and __ne__ methods based on two std::shared_ptr<T> pointing to the same address. More... | |
std::size_t | cppIndex (std::ptrdiff_t size, std::ptrdiff_t i) |
Compute a C++ index from a Python index (negative values count from the end) and range-check. More... | |
std::pair< std::size_t, std::size_t > | cppIndex (std::ptrdiff_t size_i, std::ptrdiff_t size_j, std::ptrdiff_t i, std::ptrdiff_t j) |
Compute a pair of C++ indices from a pair of Python indices (negative values count from the end) and range-check. More... | |
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inline |
Add __eq__
and __ne__
methods based on two std::shared_ptr<T> pointing to the same address.
T | The type to which the std::shared_ptr points. |
PyClass | The pybind11 class_ type; this can be automatically deduced. |
Example:
lsst::afw::table records are considered equal if two std::shared_ptr<record>
point to the same record. This is wrapped as follows for lsst::afw::table::BaseRecord
, where cls
is an instance of pybind11::class_<BaseRecord, std::shared_ptr<BaseRecord>>)
:
utils::addSharedPtrEquality<BaseRecord>(cls);
Note that all record subclasses inherit this behavior without needing to call this function.
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inline |
Compute a C++ index from a Python index (negative values count from the end) and range-check.
[in] | size | Number of elements in the collection. |
[in] | i | Index into the collection; negative values count from the end |
Python | IndexError if i not in range [-size, size - 1] |
|
inline |
Compute a pair of C++ indices from a pair of Python indices (negative values count from the end) and range-check.
[in] | size_i | Number of elements along the first axis. |
[in] | size_j | Number of elements along the second axis. |
[in] | i | Index along first axis; negative values count from the end |
[in] | j | Index along second axis; negative values count from the end |
Python | IndexError if either input index not in range [-size, size - 1] |