include/core/cuda_env.hpp

This header is broader than the driver and GPU headers because CUDA environment work needs more than a single probe. It exposes the main probe plus two helper queries used by configuration logic.

cuda_env.cpp configure.cpp

Reference

Public APIcpp

Probe detect();
std::optional<std::filesystem::path> locate_nvcc();
std::optional<std::filesystem::path> locate_toolkit_root();

Why it exists

The extra helper functions let other code reuse toolkit discovery without rerunning full report generation. `src/core/configure.cpp` relies on that separation to write `.cuda-doctor.env`.

src/core/gpu.cpp

src/core/cuda_env.cpp

Related files

Core implementation

src/core/cuda_env.cpp

Finds `nvcc`, searches common CUDA install roots, parses `nvcc --version`, and derives the toolkit root directory.

Core implementation

src/core/configure.cpp

Writes `.cuda-doctor.env` with `CUDA_HOME`, `PATH`, and `LD_LIBRARY_PATH` for the discovered toolkit root.