refactor: Avoid using std::format #157

1. 
   ryanofsky commented at 7:03 pm on February 7, 2025: collaborator

   Partially revert #156 due to lack of compiler support for std::format, as reported https://github.com/chaincodelabs/libmultiprocess/pull/156#issuecomment-2643476222 and https://github.com/bitcoin/bitcoin/pull/31741#issuecomment-2643619428

   Technically it means this code is using locale dependent functions again, though I think in practice results will not be locale dependent because these are just integers not floating point numbers being formatted.

   This code could be written to use std::to_chars and be more independent, at the cost being slightly more complicated. Could be considered for a followup.

2. refactor: Avoid using std::format

   Partially revert #156 due to lack of compiler support for std::format, as
   reported
   https://github.com/chaincodelabs/libmultiprocess/pull/156#issuecomment-2643476222
   and https://github.com/bitcoin/bitcoin/pull/31741#issuecomment-2643619428
   
   Technically it means this code is using locale dependent functions again,
   though I think in practice results will not be locale dependent because these
   are just integers not floating point numbers being formatted.
   
   This code could be written to use std::to_chars and be more independent, at the
   cost being slightly more complicated. Could be considered for a followup.

   eca8fd3eee
3. ryanofsky merged this on Feb 7, 2025
4. ryanofsky closed this on Feb 7, 2025

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