Recover from invalid model outputYou let Ax validate fields and retry with specific correction feedback. Your app can still distinguish generation errors, provider failures, and cancellation.cppacademyacademy/topics/structured-validation-errorswebsite/content-src/academy/course.mjsacademyRecover from invalid model output
You let Ax validate fields and retry with specific correction feedback. Your app can still distinguish generation errors, provider failures, and cancellation.
8 focused minutesNot started
Unit example (nearest native match)
See the idea in context
auto answer = axllm::ax("question:string -> answer:string");
Run the program normally
Most valid responses return through the usual typed path.
Catch the specific failure
AxGenerateError identifies a generation or validation failure you can report deliberately.
Preserve useful details
error.details gives logs and UI a concrete repair target.
Run itIn your own project
include(FetchContent)
FetchContent_Declare(axllm GIT_REPOSITORY https://github.com/ax-llm/ax GIT_TAG main SOURCE_SUBDIR packages/cpp)
FetchContent_MakeAvailable(axllm)
target_link_libraries(your_app PRIVATE axllm::axllm)
#include <axllm/axllm.hpp>
auto llm = axllm::ai("openai", axllm::object({{"apiKey", std::getenv("OPENAI_API_KEY")}}));
auto classify = axllm::ax("review:string -> sentiment:class \"positive, negative, neutral\"");
Set OPENAI_APIKEY in your environment before running provider-backed code.
In the ax repo
From a clone of the ax repo:
npm run example -- cpp src/examples/cpp/generation/basic_generation.cpp