tensor_util.h#

Tensor conversion helpers used by schema builders, including onnx_light::ParseData() and onnx_light::ToTensor().

Declares tensor conversion helpers used by ONNX schema definitions.

This header provides utility templates to decode typed values from a Tensor wrapper and to construct TensorProto constants from scalar and vector C++ values.

namespace onnx_light

Alias that makes onnx-light headers compatible with code that references ONNX_LIGHT_NAMESPACE (the macro used in the standard onnx package).

Set to ONNX_LIGHT_NAMESPACE so both names resolve to the same namespace.

Symbol-visibility attribute for the public onnx-light C++ API.

Defined as empty because onnx-light does not require explicit __declspec(dllexport) or __attribute__((visibility("default"))) annotations — visibility is controlled at the shared-library level. The macro is provided so that vendored ONNX headers that decorate their declarations with ONNX_API compile without modification.

Namespace alias so that ONNX C++ code (and consumers such as onnxruntime) that refers to the literal onnx namespace — rather than the ONNX_NAMESPACE macro — resolves to the onnx-light namespace. The standard onnx package lives in namespace onnx; onnx-light uses onnx_light (via ONNX_LIGHT_NAMESPACE), so this alias keeps onnx-light a true drop-in. It is only introduced when the onnx-light namespace differs from onnx.

Functions

template<typename T> std::vector<T> ParseData(const TensorProto *tensor)#

Extracts typed element data from a Tensor wrapper.

Template Parameters:: T – Element type to decode.
Parameters:: tensor – Source tensor wrapper.
Returns:: A vector containing tensor data converted to T.

template<typename T> std::vector<T> ParseData(const Tensor *tensor)#

Extracts typed element data from a Tensor wrapper.

Template Parameters:: T – Element type to decode.
Parameters:: tensor – Source tensor wrapper.
Returns:: A vector containing tensor data converted to T.

template<typename T> TensorProto ToTensor(const T &value)#

Creates a scalar TensorProto from a C++ value.

Template Parameters:: T – Scalar value type.
Parameters:: value – Scalar value to encode.
Returns:: A TensorProto containing one element.

template<typename T> TensorProto ToTensor(const std::vector<T> &values)#

Creates a 1D TensorProto from a vector of values.

Template Parameters:: T – Element value type.
Parameters:: values – Values to encode.
Returns:: A TensorProto containing values in order.

inline TensorProto ToTensor(const TensorProto &tensor)#

Returns a TensorProto input unchanged.

Parameters:: tensor – TensorProto to pass through.
Returns:: tensor.