nanoprintf v0.4.0:
Feature: Floating point rounding. Costs ~100 bytes but space well spent.
Bugfix / Safety: npf_[v]snprintf truncates identically to snprintf. Removes the NANOPRINTF_SNPRINTF_SAFE_TRIM_STRING_ON_OVERFLOW flag and performs string-trim by default.
Bugfix: Don't dereference a string pointer if the precision is zero.