bugTiny C Compiler - Bugs: bug #61373, tcc hangs on static assert with...

 
 

bug #61373: tcc hangs on static assert with empty string

Submitted by:  Gabriel Ravier <gabrielravier>
Submitted on:  Sun 24 Oct 2021 01:20:58 PM UTC
 
Category:  None Severity:  3 - Normal
Item Group:  None Status:  None
Privacy:  Public Assigned to:  None
Open/Closed:  Open
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Sun 24 Oct 2021 01:20:58 PM UTC, original submission:  

_Static_assert(0, "");

On current trunk this code makes tcc hang forever.

This seems to be caused by the fact that `cstr_realloc` deals badly with a very high `new_size` (getting stuck in an infinite loop), along with the fact that `cstr_vprintf` seems to deal with the case where the appended formatted string is of size 0 badly (also seemingly getting stuck in its own infinite loop).

Gabriel Ravier <gabrielravier>

 

(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

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