rm5248 opened a new issue, #344: URL: https://github.com/apache/logging-log4cxx/issues/344
I've come back to some code that I'm pretty sure worked before: ``` LOG4CXX_INFO_FMT(logger, "hello"); ``` However, GCC 12.2 and clang 14 both fail to compile this code. I'm fairly certain it compiled properly with GCC 10.2. The problem is that in our macros we use `__VA_ARGS__` which because there are no arguments seems to cause an error in these compilers. The workaround for now is to simply use `LOG4CXX_INFO` instead of the `_FMT` series of macros or to simply add an (unused) argument, but this seems a little silly. It seems that with C++20, we could do `__VA_OPT__(,) __VA_ARGS__`. Ideally we should be able to support versions before C++20 in a portable way. Some more info: https://stackoverflow.com/questions/5891221/variadic-macros-with-zero-arguments https://gcc.gnu.org/onlinedocs/cpp/Variadic-Macros.html -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: notifications-unsubscr...@logging.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
