https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47781
--- Comment #24 from Tom Tromey <tromey at gcc dot gnu.org> --- (In reply to David Crocker from comment #23) > I need this feature too. Instead of waiting several more years for an > all-singing all-dancing solution, PLEASE can we have a simple solution that > allows me to use a custom format specifier and skips a single argument for > that specifier. I believe this would cover the vast majority of uses custom > format specifiers. My particular use case is that my application generates a > lot of JSON strings, so in my printf replacement I want to implement a > specifier similar to %s that performs JSON escaping on characters in the > string. As a workaround, see the kernel doc linked earlier in this bug. gdb uses this hack as well -- e.g., it uses "%ps" in its formatter to mean a styled string, passed as a pointer to get past gcc's checking.
