Microlib provides a limited stdio subsystem
that supports unbuffered stdin, stdout and stderr only.
This enables you to use printf() for displaying
diagnostic messages from your application.
To use high-level I/O functions you must provide your own implementation of the following base functions so that they work with your own I/O device.
fputc()Implement this base function for all output functions. For example,
fprintf(),printf(),fwrite(), fputs(),puts(),putc()andputchar().fgetc()Implement this base function for all input functions. For example,
fscanf(),scanf(),fread(),read(),fgets(),gets(),getc()andgetchar().__backspace()Implement this base function if your input functions use
scanf()orfscanf().
Note
Conversions that are not supported in microlib are %lc, %ls and %a.