fix some C++ code flagged by CRAN warnings

nimble-dev / nimble

The base NIMBLE package for R

http://R-nimble.org

BSD 3-Clause "New" or "Revised" License

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Closed perrydv closed 8 months ago

perrydv commented 8 months ago

This branch attempts to fix some bits of C++ that threw up new CRAN warnings Nov 26, 2023.

Fixes #1360