On Wed, 21 Aug 2019, Martin Jambor wrote:
> - I have listed roundeven variants in extend.texi. If I did not find
> the right spot, I will gladly move to a more appropriate one.
I don't think they should be documented with the __builtin_* that are
always expanded inline. They should be documented in the list of
functions that *might* be expanded inline. That is, where extend.texi
says:
[...] Many of these
functions are only optimized in certain cases; if they are not optimized in
a particular case, a call to the library function is emitted.
@opindex ansi
@opindex std
Outside strict ISO C mode (@option{-ansi}, @option{-std=c90},
@option{-std=c99} or @option{-std=c11}), the functions
@code{_exit}, [...]
may be handled as built-in functions.
All these functions have corresponding versions
prefixed with @code{__builtin_}, which may be used even in strict C90
mode.
(Until we enable these by default for C2X, at which point they'd be listed
as C2X functions after the C99 ones.)
--
Joseph S. Myers
jos...@codesourcery.com
