For AVR MCU, Framework and learning, build assembler subroutine, call from C++, Arduino IDE is C++. Arduino IDE 1.8.12 skectch is named *.ino, considered C or C++ of programming source code, under ...

This is an Arduino subroutine to word-wrap lines of text so that line breaks on Adafruit displays happen at whitespace instead of in words. Just copy the subroutine from wordWrap.cpp into your sketch ...