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From: Peter Dimov (pdimov_at_[hidden])
Date: 2020-05-25 13:26:32

Dimitri John Ledkov wrote:

> If boost-regex is better, should Ubuntu switch to it as the default
> std::regex provider? Such that anything built on or for Ubuntu uses the
> faster implementation?

Probably not, all things considered. libstdc++ has a relatively good
std::regex (by Tim Shen); in Boost.Regex's own benchmarks it's occasionally
slower by a factor of 37:

but typically holds its own.

libc++ seems the worst of the three; in it's
slower by a factor of 80.

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