Comment by duneroadrunner

It's a good point, but at least with Go the leak would be limited to the allocated buffer. This is probably a case where Rust or C++ might be more helpful. Presumably you wouldn't want to allocate a new (variable sized) buffer each time (particularly in a GC language), but you could create a new (bounds checked) slice[1] / array_view[2] / gsl::span / RandomAccessSection[3] each time.

[1] https://doc.rust-lang.org/nightly/std/slice/

[2] https://github.com/rhysd/array_view

[3] https://github.com/duneroadrunner/SaferCPlusPlus#txscoperand...