If TI updates their fputc, then files written on TI microcontrollers would not be compatible with any other system, see other comments for plenty of examples.

If TI updates their fputc, then files written on TI microcontrollers would not be compatible with any other system, see other comments for plenty of examples. Most people who actually write for TI systems actually want to fputc to truncate. And the blog author got incensed right away without actually bothering to figure out _why_ the truncation happened or seeing what would be the implication of his proposed change on real-world programs.