[Tinycc-devel] C standards committee

[Detlef Riekenberg]

Hi JeanHeyd

I'm tracking c23 and we already exchanged some mails last autum.
There are also bug reports for the open issues i send to you.


tcc status, without additional testing
( see http://www.github.com/winspool/stdtests )
c99: complex missing (but that's allowed since c11 with the define)
c99: _Pragma keyword missing (#pragma works)
c11: unicode strings missing:  u8, u and U prefix
c11: threads.h: does thread/sync functions need compiler support?
c11: stdatomic.h: needs some work
c11: _Thread_local: missing
c17: not looked at
c23:  __has_include: implemented
c23: _Static_assert without comment: supported
c23:  #warning: implemented


A lot of things in the C standard are not checked in our testsuite.


Fun fact: The c23 proposal for '__has_include' mentioned, 
that tcc supports '__has_include', but at that time, 
only the keyword was detected, but ignored  :-)


Autoconf feature checks for c11 where already on this list.
Last missing step used by Autoconf for enable  c11 with tcc
are the u8 strings/literals.


Primary advantage for using  tcc is compilation speed,
so every fancy feature added to the C standard is probably bad for tcc.


btw, i'm looking at / following:
* OpenWatcom-v2
* Autoconf
* csmith  ( see also: https://www.github.com/winspool/csmith.sh )
* qbe
* zig ( for 'zig cc' mode )
* some other projects

-- 
bye bye ... Detlef