CODEWITHSUNDEEP
lambdacudainline
einpoklum
einpoklum

Reputation: 131976

The enclosing parent function for an extended ... lambda must allow its address to be taken

In my code, I have:

__host__ __device__ inline void foo() { bar([=] __host__ __device__ (...) { ... }); }
__host__ __device__ bar<typename F>(F f) { ... f(...); }

But when I compile this (with --extended-lambda), I get the error message:

error #3108-D: The enclosing parent function ("foo") for an extended
__host__ __device__ lambda must allow its address to be taken

what exactly does this mean?

Upvotes: 1

Views: 867

Answers (1)

einpoklum
einpoklum

Reputation: 131976

This is my guess only: NVCC needs the enclosing function to be not-inlined; that's how it can "take its address", which is somehow necessary for using the lambda.

Upvotes: 1

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