On Thu, 11 Aug 2016, Martin Sebor wrote: > * New target hooks remove hardcoding target-specific assumptions > about libc implementation-specific details (%p format and printf > floating point rounding mode).
But the rounding mode may vary at runtime; optimally the conversions should use the rounding mode set with fesetround. Determining it with a target hook doesn't make sense. What's more appropriate would be determining both rounded-up and rounded-down strings to get bounds on the possible length. > +Warn about function calls with format strings that wite past the end "write" -- Joseph S. Myers jos...@codesourcery.com