(Crossposted to gcc-help and elinks-dev)
In ELinks, we're using unsigned char almost everywhere.
This convention was apparently inherited from Links.
I think the purpose might be to reduce the need for casts
in <ctype.h> calls and charset conversions.
Then we have functions like
void elinks_debug(unsigned char *fmt, ...);
that take a format string and arguments. It would be nice to
have GCC check that the types of those arguments match the format
string. But if I declare the function as
void elinks_debug(unsigned char *fmt, ...)
__attribute__((format(printf, 1, 2)));
then GCC 4.3.1 rejects it, even with -Wno-pointer-sign:
/home/Kalle/src/elinks-0.12/src/util/error.h:23: error: format string argument
not a string type
If I change the unsigned char * to char *, then this error goes
away. But is there any other way to make GCC check the format
arguments without this error?
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