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A few dtype method docstrings

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Ivan Smirnov 2016-10-22 10:51:04 +01:00 committed by Wenzel Jakob
parent f70cc112f0
commit ef5a38044c
1 changed files with 5 additions and 1 deletions
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6
include/pybind11/numpy.h
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@ -185,26 +185,30 @@ public:
m_ptr = from_args(args).release().ptr();
}
/// This is essentially the same as calling numpy.dtype(args) in Python.
static dtype from_args(object args) {
// This is essentially the same as calling np.dtype() constructor in Python
PyObject *ptr = nullptr;
if (!detail::npy_api::get().PyArray_DescrConverter_(args.release().ptr(), &ptr) || !ptr)
pybind11_fail("NumPy: failed to create structured dtype");
return object(ptr, false);
}
/// Return dtype associated with a C++ type.
template <typename T> static dtype of() {
return detail::npy_format_descriptor<typename std::remove_cv<T>::type>::dtype();
}
/// Size of the data type in bytes.
size_t itemsize() const {
return (size_t) PyArrayDescr_GET_(m_ptr, elsize);
}
/// Returns true for structured data types.
bool has_fields() const {
return PyArrayDescr_GET_(m_ptr, names) != nullptr;
}
/// Single-character type code.
char kind() const {
return PyArrayDescr_GET_(m_ptr, kind);
}