On Tue, Mar 16, 2021 at 11:26:29AM +0100, Jakub Jelinek wrote:
> On Tue, Mar 16, 2021 at 11:20:05AM +0100, Rene Kita wrote:
> > % gcc -Wall -Wpedantic main.c
> > main.c: In function 'main':
> > main.c:10:16: warning: format '%hn' expects argument of type 'short int *',
> > but argument 2 has type 'short unsigned int *' [-Wformat=]
> > 10 | printf("p: %hn\n", p);
> > | ~~^ ~
> > | | |
> > | | short unsigned int *
> > | short int *
> > | %hn
^^^^^
> > The warning for line 10 suggests to use '%hn' as format specifier which
> > is already used and the wrong one. AFAIK the correct format specifier
> > would be '%p' here.
>
> No, the warning tells you that argument for %hn should have short int *
> type, not unsigned short int *.
I understand this and I don't say the warning is wrong but the suggested
solution. I have highlighted the part of the output I'm talking about
above. If you replace the '%hn' with e.g. '%d' you get the same
suggestion:
main.c: In function 'main':
main.c:10:15: warning: format '%d' expects argument of type 'int', but argument
2 has type 'short unsigned int *' [-Wformat=]
10 | printf("p: %d\n", p);
| ~^ ~
| | |
| int short unsigned int *
| %hn
^^^^^
> Jakub
Rene
