Hi, I haven't used this attribute before, but the following is what I feel after giving it a try now... > void trace(conn_t *, wchar_t *, ...) > __attribute__ ((format(printf, 2, 3))); > > And GCC aborts with: > > "error: format string argument not a string type" Here, the error is due to the fact that gcc expects the 'string-index' parameter of format attribute to point to 'const char *' type. > void trace(conn_t *, wchar_t *, ...) > __attribute__ ((format(wprintf, 2, 3))); > > But GCC tells me that: > > "warning: 'wprintf' is an unrecognized format function type" This error is because, according to gcc-4.2.0 manual it only supports the following - printf, scanf, strftime or strfmon - for the 'archetype' parameter offormat attribute. So I feel we are out of luck unless gcc adds support for 'wprintf' as archetype for format attribute. I found a mail loop at gcc-patches mailing list where a patch is submitted to add this support and its discussion. I am not sure if has got approved, but you may take a look at it. Here is the link - http://gcc.gnu.org/ml/gcc-patches/2001-12/msg01579.html Hope that will help you. Regards, Cyon - To unsubscribe from this list: send the line "unsubscribe linux-c-programming" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
