Adapts a pre-loaded MnistDataset (MnistIdxLoader::Load's output) onto the generic Dataset interface – minimal-diff retrofit (campaign_exai_dl_library_data_pipeline, Mission 4): MnistIdxLoader/MnistDataset themselves are unchanged, still exercised directly by mnist_loader_test.cpp; this adapter is purely additive, fulfilling mnist_loader.hpp's own note that a second real dataset is the moment to generalize. More...

#include <mnist_dataset_adapter.hpp>

Inheritance diagram for pulsatrix::MnistDatasetAdapter:

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Collaboration diagram for pulsatrix::MnistDatasetAdapter:

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Public Member Functions
	MnistDatasetAdapter (MnistDataset dataset, DeviceBackend *backend)

int64_t	size () const override
	Number of samples in this dataset.

Sample	get (int64_t index) const override

Public Member Functions inherited from pulsatrix::Dataset
virtual	~Dataset ()=default

Detailed Description

Adapts a pre-loaded MnistDataset (MnistIdxLoader::Load's output) onto the generic Dataset interface – minimal-diff retrofit (campaign_exai_dl_library_data_pipeline, Mission 4): MnistIdxLoader/MnistDataset themselves are unchanged, still exercised directly by mnist_loader_test.cpp; this adapter is purely additive, fulfilling mnist_loader.hpp's own note that a second real dataset is the moment to generalize.

Constructor & Destructor Documentation

◆ MnistDatasetAdapter()

pulsatrix::MnistDatasetAdapter::MnistDatasetAdapter	(	MnistDataset	dataset,
		DeviceBackend *	backend
	)

inline

Member Function Documentation

◆ get()

Sample pulsatrix::MnistDatasetAdapter::get ( int64_t index ) const

inlineoverridevirtual

Exceptions

std::out_of_range if index is out of bounds.

Returns: {image (1,1,28,28), label as a (1,) float Tensor} – the label conversion is the only new work here; the image Tensor is already batch-of-one shaped, matching this codebase's existing convention, so it is returned unchanged (deep-copied via Tensor's copy constructor, since Sample owns its fields).

Implements pulsatrix::Dataset.

◆ size()

int64_t pulsatrix::MnistDatasetAdapter::size ( ) const