Re: [boost] Error handling libraries and proposals

On 10/07/2017 18:07, Emil Dotchevski via Boost wrote:

Last week it was brought to my attention that there are currently 5 different libraries and proposals for dealing with the problem of reporting errors from noexcept functions, so I thought it would be useful to update the Noexcept documentation with a short section comparing all the different designs: https://zajo.github.io/boost-noexcept/#alternatives.

Some notes on Outcome v2 related to your now out of date comparison: * result and outcome can now be error type customised, same as all the other libraries. For example, outcome is legal, though unusable. * result and outcome are struct-like, some of the others are variant-like. * I have compiled out by default an implementation of P0252 as well, but it can be reenabled if I decide it's wise later. Your table would be better if it listed the items in the headers rather than by number, but for Outcome v2 the new values are: yes, yes, yes, yes, no, yes, yes, yes. (v2 result is specifically designed to be C struct layout compatible) Niall -- ned Productions Limited Consulting http://www.nedproductions.biz/ http://ie.linkedin.com/in/nialldouglas/