Re: [rust-dev] Appeal for CORRECT, capable, future-proof math, pre-1.0

[Isaac Dupree]

Another sweet spot for a few applications is larger-than-word-sized 
fixed-width types, such as a 128 or 192 bit (u)int.  This is useful for 
code that has to deal with values larger than 64 bits but within, say, 
256 or 512 bits (above this, I think the costs of dynamic allocation and 
non-inlined numeric code become cheap-ish compared to the numeric 
computation and storage costs).  I've done this with C++ templates; it 
works pretty okay; it sure makes GCC/LLVM's register allocator work hard!

-Isaac
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