CUDA Academy · Lesson

A Reusable CUDA_CHECK Macro

Wrapping every call for safety.

Checking Every Call Is Tedious

Writing an if-statement after every CUDA call clutters your code fast. A reusable CUDA_CHECK macro fixes that with one clean line. 🧹

You want to wrap any call, grab its return code, and bail out loudly if it failed. One macro can do this everywhere.

CUDA_CHECK(cudaMalloc(&d, n));