本文整理汇总了C++中dynd::ndt::type::get_arrmeta_size方法的典型用法代码示例。如果您正苦于以下问题：C++ type::get_arrmeta_size方法的具体用法？C++ type::get_arrmeta_size怎么用？C++ type::get_arrmeta_size使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类dynd::ndt::type的用法示例。
在下文中一共展示了type::get_arrmeta_size方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: array_no_dim_broadcast_assign_from_py
void pydynd::array_no_dim_broadcast_assign_from_py(
const dynd::ndt::type &dst_tp, const char *dst_arrmeta, char *dst_data,
PyObject *value, const dynd::eval::eval_context *ectx)
{
// TODO: This is a hack, need a proper way to pass this dst param
dynd::nd::array tmp_dst(
dynd::make_array_memory_block(dst_tp.get_arrmeta_size()));
tmp_dst.get()->tp = dst_tp;
tmp_dst.get()->flags =
dynd::nd::read_access_flag | dynd::nd::write_access_flag;
if (dst_tp.get_arrmeta_size() > 0) {
dst_tp.extended()->arrmeta_copy_construct(
tmp_dst.get()->metadata(), dst_arrmeta,
dynd::intrusive_ptr<dynd::memory_block_data>());
}
tmp_dst.get()->data = dst_data;
dynd::ndt::type src_tp = dynd::ndt::type::make<void>();
const char *src_arrmeta = NULL;
char *src_data = reinterpret_cast<char *>(&value);
const char *kwd_names[1] = {"broadcast"};
dynd::nd::array kwd_values[1] = {false};
(*pydynd::nd::copy_from_pyobject.get().get())(
tmp_dst.get_type(), tmp_dst.get()->metadata(), tmp_dst.data(), 1, &src_tp,
&src_arrmeta, &src_data, 1, kwd_values,
std::map<std::string, dynd::ndt::type>());
tmp_dst.get()->tp = dynd::ndt::type();
}示例2:
void pydynd::nd::array_copy_from_numpy(const dynd::ndt::type &dst_tp,
const char *dst_arrmeta, char *dst_data,
PyArrayObject *src_arr,
const dynd::eval::eval_context *ectx)
{
intptr_t src_ndim = PyArray_NDIM(src_arr);
strided_of_numpy_arrmeta src_am_holder;
const char *src_am = reinterpret_cast<const char *>(
&src_am_holder.sdt[NPY_MAXDIMS - src_ndim]);
// Fill in metadata for a multi-dim strided array, corresponding
// to the numpy array, with a void type at the end for the numpy
// specific data.
uintptr_t src_alignment = reinterpret_cast<uintptr_t>(PyArray_DATA(src_arr));
for (intptr_t i = 0; i < src_ndim; ++i) {
dynd::fixed_dim_type_arrmeta &am =
src_am_holder.sdt[NPY_MAXDIMS - src_ndim + i];
am.dim_size = PyArray_DIM(src_arr, (int)i);
am.stride = am.dim_size != 1 ? PyArray_STRIDE(src_arr, (int)i) : 0;
src_alignment |= static_cast<uintptr_t>(am.stride);
}
dynd::ndt::type src_tp = dynd::ndt::make_type(
src_ndim, PyArray_SHAPE(src_arr), dynd::ndt::type::make<void>());
src_am_holder.am.src_dtype = PyArray_DTYPE(src_arr);
src_am_holder.am.src_alignment = src_alignment;
// TODO: This is a hack, need a proper way to pass this dst param
dynd::nd::array tmp_dst(
dynd::make_array_memory_block(dst_tp.get_arrmeta_size()));
tmp_dst.get()->tp = dst_tp;
tmp_dst.get()->flags =
dynd::nd::read_access_flag | dynd::nd::write_access_flag;
if (dst_tp.get_arrmeta_size() > 0) {
dst_tp.extended()->arrmeta_copy_construct(
tmp_dst.get()->metadata(), dst_arrmeta,
dynd::intrusive_ptr<dynd::memory_block_data>());
}
tmp_dst.get()->data = dst_data;
char *src_data = reinterpret_cast<char *>(PyArray_DATA(src_arr));
const char *kwd_names[1] = {"broadcast"};
dynd::nd::array kwd_values[1] = {true};
(*pydynd::nd::copy_from_numpy::get().get())(
tmp_dst.get_type(), tmp_dst.get()->metadata(), tmp_dst.data(), 1, &src_tp,
&src_am, &src_data, 1, kwd_values,
std::map<std::string, dynd::ndt::type>());
tmp_dst.get()->tp = dynd::ndt::type();
}