errors.h

Exception types and helper macros for ONNX version conversion errors.

Provides the ConvertError exception class and the fail_convert() macro used throughout the version_converter subsystem to report unsupported or invalid version-conversion operations.

Defines

fail_convert(...)

Throws a ConvertError whose message is built from the given arguments.

Concatenates all arguments via MakeString() and throws a ConvertError with the resulting string. When ONNX_NO_EXCEPTIONS is defined the macro prints the message to std::cerr and calls std::abort() instead.

Parameters:

• ... – One or more values that can be streamed into a std::string via MakeString(). Common examples are string literals, operator names, and version numbers.

Throws ConvertError:

Always (unless exceptions are disabled).

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.

namespace version_conversion

struct ConvertError : public std::runtime_error

#include <errors.h>

Exception thrown when an ONNX operator version conversion fails.

Derives from std::runtime_error. Raise this exception (typically via the fail_convert() macro) to signal that the requested version conversion is not supported or that the model is in an invalid state for conversion.

Public Functions

inline explicit ConvertError(const std::string &message)

Constructs a ConvertError with the given message.

Parameters:

message – Human-readable description of the conversion failure.