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| HDF5 Last Updated on 2026-03-23 The HDF5 Field Guide

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H5DOpublic.h File Reference

## Functions
H5HL_DLL herr_t | H5DOappend (hid_t dset_id, hid_t dxpl_id, unsigned axis, size_t extension, hid_t memtype, const void *buf)
| Appends data to a dataset along a specified dimension.
H5HL_DLL herr_t | H5DOread_chunk (hid_t dset_id, hid_t dxpl_id, const hsize_t *offset, uint32_t *filters, void *buf)
| Reads a raw data chunk directly from a dataset in a file into a buffer.
H5HL_DLL herr_t | H5DOwrite_chunk (hid_t dset_id, hid_t dxpl_id, uint32_t filters, const hsize_t *offset, size_t data_size, const void *buf)
| Writes a raw data chunk from a buffer directly to a dataset in a file.