IMO dealing with NVs, IVs, UVs should be left to perl, its algorithms were tuned by years of everyday use and tons of bugreports. So instead of inserting your own "if numerix then stringify" better just do nothing and perl will DWIM. (let days of its DWIMery and TIMTOWTDI will be countless :)

I applause to your intentions on deal efficiently with SV. This is very doable. I will gladly share my knowledge, in addition to what I already shared (try pure-XS w/o Inline::C and you need reference to SV to be able to modify SV passed to sub).

In reply to Re^7: XS/Inline::C concat *any* two SVs. by vkon
in thread XS/Inline::C concat *any* two SVs. by BrowserUk

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