Re: weird compiler error in 13.3-R

The problem is not type conversion issue described in compiling message 
. If the problem is a conversion issue, then it is easy to fix in coding.

The problem is compiler treated va_list as unsigned in in line 119, then 
treated va_list as a structure pointer. This looks like a compiler bug.

+hackers to see if someone knows what happened in the new compiler.

-Jin

On 3/10/24 00:43, Paul Procacci wrote:
> https://reviews.llvm.org/D129881
>
> The author of the change can explain it better than anyone else here.
>
> ~Paul
>
> On Sun, Mar 10, 2024 at 4:24 AM Jin Guojun[VFF] <jguojun@gmail.com> wrote:
>
>     Updated 13.2 to 13.3 and get a weird compiling failure. The code
>     compiled since FreeBSD release 4 till release 13.2.
>
>     Both ap (line 119) and vap (line 126) are declared as va_list,
>     somehow
>     clang version 17.0.6 thinks va_list at line 119 is uint,
>
>     where va_list in line 126 is 'struct __va_list_tag *'.
>
>     Checked /usr/include and va_list is declared in
>     /usr/include/sys/_stdarg.h:39:  typedef __va_list va_list;
>     included by /usr/include/stdarg.h via x86/stdarg.h
>
>       Does anyone have ideas on what could cause such compiling failure?
>
>     -Jin
>
>          10 #include <stdarg.h>
>           11 #include <stdio.h>
>
>          118 struct  a_build_ctrl_t  {
>          119         va_list         ap;     /* what is different from
>     vap
>     at line 126?    */
>          120         argu_type       last_arg_t;
>          121 };
>          124
>          125 arg_fmt_lists*
>          126 build_arg_fmt_list(arg_fmt_list_string* fmt, va_list vap)
>          127 {
>          128     int     na=1;
>          129
>          130      arg_fmt_lists* aflp;
>          131      arg_fmt_lists* aflp_top;
>          132
>          133     struct a_build_ctrl_t   abc = {.ap=vap,
>     last_arg_t=ARGU_NONE};
>
>       ...
>
>            }
>
>     test.c:133:34: error: incompatible pointer to integer conversion
>     initializing 'unsigned int' with an expression of type 'struct
>     __va_list_tag *' [-Wint-conversion]
>        133 | struct a_build_ctrl_t   abc = {.ap=vap,
>     .last_arg_t=ARGU_NONE};
>
>
>
>
> -- 
> __________________
>
> :(){ :|:& };: