Re: [Tinycc-devel] Bug that TinyCC Analyses Strings inside #if 0 blocks

[Vincent Lefevre]

On 2022-07-13 20:12:25 +0200, grischka wrote:
> On 13.07.2022 17:17, Vincent Lefevre wrote:
> > On 2022-07-13 12:01:57 +0200, grischka wrote:
> > > There was no bug here in tcc,  it was/is just different behavior, fully
> > > intentional and even documented with a test case.
> > 
> > There was a bug in tcc: the ISO C standard requires a diagnostic.
> 
> Well, define "bug" ...?
> 
> In my book, a bug is unwanted behavior in the sense of unwanted by
> the person who wrote the code.  It is when what I wrote (for example)
> doesn't do what I want.
> 
> Common sources of bugs are, beyond simple mistakes, that (1) I maybe don't
> really know what I want, or maybe that (2) I refuse to acknowledge that
> what I want, in combination, is logically impossible.
> 
> It is not a bug, per se, when tcc doesn't work like gcc, or when it doesn't
> conform to the standards in some aspect.  As long the behavior is on purpose
> and consistent.  In my book.

Well, in the tcc manual, there seems to be an intent to support C99:

  TCC implements many features of the new C standard: ISO C99.  Currently
  missing items are: complex and imaginary numbers.

The absence of required diagnostics is not a missing item.

And note that this is not listed as an extension either.

-- 
Vincent Lefèvre <vincent@vinc17.net> - Web: <https://www.vinc17.net/>
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Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)