[BACKPORT] Implement math functions for thrust::complex #1191
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* Implement math functions for `thrust::complex` We are having issues that the `cuda::std` math functions that take a `cuda::std::complex` return a `cuda::std::complex`. This can lead to issues as we require a conversion sequence from `cuda::std::complex` to `thrust::complex` which e.g is broken by an constructor being explicit. Addresses nvbug4397241
miscco
requested review from
alliepiper,
ericniebler,
gevtushenko and
jrhemstad
miscco
added
libcu++
gevtushenko
approved these changes
Dec 7, 2023
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This is a backport of #1178
We need to ensure that math functions that return a
complex<T>actually return athrust::complex<T>and not acuda::std::complex<T>