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ONNX Runtime
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ONNX Runtime
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| ▼NOrt | All C++ Onnxruntime APIs are defined inside this namespace |
| ►Ndetail | Wrapper around OrtSyncStream |
| CAllocator | Wrapper around OrtAllocator |
| CAllocatorWithDefaultOptions | Wrapper around OrtAllocator default instance that is owned by Onnxruntime |
| CArenaCfg | It is a structure that represents the configuration of an arena based allocator |
| CAttrNameSubgraph | |
| CBFloat16_t | Bfloat16 (Brain Floating Point) data type |
| CCheckpointState | Holds the state of the training session |
| CCUDAProviderOptions | The CUDAProviderOptions (V2) |
| CCustomOpBase | |
| CCustomOpConfigs | Class that represents session configuration entries for one or more custom operators |
| CCustomOpDomain | Custom Op Domain |
| CDeviceEpIncompatibilityDetails | Wrapper around OrtDeviceEpIncompatibilityDetails |
| CEnv | The Env (Environment) |
| CEpDevice | Mutable EpDevice that is created by EpApi users |
| CException | All C++ methods that can fail will throw an exception of this type |
| CExternalInitializerInfo | Wrapper around OrtExternalInitializerInfo |
| CFloat16_t | IEEE 754 half-precision floating point data type |
| CFloat8E4M3FN_t | Float8e4m3fn (Float8 Floating Point) data type |
| CFloat8E4M3FNUZ_t | Float8e4m3fnuz (Float8 Floating Point) data type |
| CFloat8E5M2_t | Float8e5m2 (Float8 Floating Point) data type |
| CFloat8E5M2FNUZ_t | Float8e5m2fnuz (Float8 Floating Point) data type |
| CGraph | Wrapper around OrtGraph |
| CIoBinding | Wrapper around OrtIoBinding |
| CKernelContext | This class wraps a raw pointer OrtKernelContext* that is being passed to the custom kernel Compute() method. Use it to safely access context attributes, input and output parameters with exception safety guarantees. See usage example in onnxruntime/test/testdata/custom_op_library/custom_op_library.cc |
| CKernelDef | |
| CKernelDefBuilder | Builder for OrtKernelDef |
| CKernelInfo | This struct owns the OrtKernInfo* pointer when a copy is made. For convenient wrapping of OrtKernelInfo* passed to kernel constructor and query attributes, warp the pointer with Ort::Unowned<KernelInfo> instance so it does not destroy the pointer the kernel does not own |
| CKernelRegistry | Registry for kernels supported by an EP |
| CKeyValuePairs | Wrapper around OrtKeyValuePairs |
| CLogger | This class represents an ONNX Runtime logger that can be used to log information with an associated severity level and source code location (file path, line number, function name) |
| CLoraAdapter | LoraAdapter holds a set of Lora Parameters loaded from a single file |
| CMapTypeInfo | Wrapper around OrtMapTypeInfo |
| CMemoryAllocation | Represents native memory allocation coming from one of the OrtAllocators registered with OnnxRuntime. Use it to wrap an allocation made by an allocator so it can be automatically released when no longer needed |
| CMemoryInfo | Wrapper around OrtMemoryInfo |
| CModel | Wrapper around OrtModel |
| CModelCompilationOptions | Options object used when compiling a model |
| CModelMetadata | Wrapper around OrtModelMetadata |
| CNode | Wrapper around OrtNode |
| COp | Create and own custom defined operation |
| COpAttr | This struct provides life time management for custom op attribute |
| COperatorSet | |
| CPrepackedWeightsContainer | The PrepackedWeightsContainer |
| CProfilingEvent | Owning wrapper around OrtProfilingEvent |
| CRunOptions | RunOptions |
| CSequenceTypeInfo | Wrapper around OrtSequenceTypeInfo |
| CSession | Wrapper around OrtSession |
| CSessionOptions | Wrapper around OrtSessionOptions |
| ►CShapeInferContext | Provide access to per-node attributes and input shapes, so one could compute and set output shapes |
| CStatus | The Status that holds ownership of OrtStatus received from C API Use it to safely destroy OrtStatus* returned from the C API. Use appropriate constructors to construct an instance of a Status object from exceptions |
| CSyncStream | |
| CTensorRTProviderOptions | The TensorRTOptions (V2) |
| CTensorTypeAndShapeInfo | Wrapper around OrtTensorTypeAndShapeInfo |
| CThreadingOptions | The ThreadingOptions |
| CTrainingSession | Trainer class that provides training, evaluation and optimizer methods for training an ONNX models |
| CTypeInfo | Type information that may contain either TensorTypeAndShapeInfo or the information about contained sequence or map depending on the ONNXType |
| CValue | Wrapper around OrtValue |
| CValueInfo | Wrapper around OrtValueInfo |
| CValueInfoConsumerProducerInfo | |
| COrtAllocator | Memory allocation interface |
| COrtApi | The C API |
| COrtApiBase | The helper interface to get the right version of OrtApi |
| COrtCompileApi | The OrtCompileApi struct provides functions to compile ONNX models |
| COrtCUDAProviderOptions | CUDA Provider Options |
| COrtCustomHandleType | |
| COrtCustomOp | |
| COrtDataTransferImpl | Struct that an EP implements for IDataTransfer to copy between devices it uses and CPU |
| COrtEnvCreationOptions | Configuration options for creating an OrtEnv |
| COrtEp | The OrtEp struct provides functions to implement for an execution provider |
| COrtEpApi | The OrtEpApi struct provides functions that are relevant to the implementation of an execution provider |
| COrtEpFactory | The OrtEpFactory provides functions to create and manage execution providers |
| COrtEpProfilerImpl | Struct that an EP implements for profiling support |
| COrtExternalMemoryDescriptor | Descriptor for importing external memory |
| COrtExternalMemoryHandle | Base struct for imported external memory handles |
| COrtExternalResourceImporterImpl | Struct that an EP implements for external resource import (memory + semaphore import) |
| COrtExternalSemaphoreDescriptor | Descriptor for importing external semaphores |
| COrtExternalSemaphoreHandle | Base struct for imported external semaphore handles |
| COrtExternalTensorDescriptor | Descriptor for creating a tensor from imported external memory |
| COrtGraphicsInteropConfig | Configuration for initializing graphics interop on an EP factory |
| COrtInteropApi | The OrtInteropApi struct provides functions for external resource interop with execution providers |
| COrtKernelImpl | Contains functions that an OrtEp implements to specify the computation for an operator kernel |
| COrtLoopKernelHelper | Contains helper functions for a Loop OrtKernelImpl created via OrtEpApi::CreateLoopKernel |
| COrtMIGraphXProviderOptions | MIGraphX Provider Options |
| COrtModelEditorApi | The OrtModelEditorApi struct provides functions to create or edit an ONNX model |
| COrtNodeComputeInfo | The OrtNodeComputeInfo struct provides functions that an OrtEp implements to specify the compute function for a compiled OrtGraph instance |
| COrtNodeFusionOptions | The OrtNodeFusionOptions struct specifies options for fusing nodes supported by an execution provider |
| COrtOpenVINOProviderOptions | OpenVINO Provider Options |
| COrtResourceCount | ABI-stable tagged union representing a resource cost or budget |
| COrtROCMProviderOptions | ROCM Provider Options |
| COrtScanKernelHelper | Contains helper functions for a Scan OrtKernelImpl created via OrtEpApi::CreateScanKernel |
| COrtSyncNotificationImpl | Struct that an EP implements for Stream Notifications |
| COrtSyncStreamImpl | Struct that an EP implements if it wishes to implement Stream support |
| COrtTensorRTProviderOptions | TensorRT Provider Options |
| COrtThreadPoolCallbacksConfig | Configuration for thread pool work callbacks |
| COrtTrainingApi | The Training C API that holds onnxruntime training function pointers |
1.9.8