Alternatives to printf() for MISRA C : 2004 compliant code

Question

I am new to coding using MISRA C guidelines.

The following are two rules in MISRA C 2004:

Rule 16.1 (required): Functions shall not be defined with a variable number of arguments. Rule 20.9 (required): The input/output library <stdio.h> shall not be used in production code.

This clearly means that I can't use printf in production code for it to be MISRA C compliant, because printf is a part of <stdio.h> and allows a variable number of arguments. So I set out on a quest to find out how I can write my own printf statement. So far I am unable to find any solution for this predicament. Any help from fellow developers would be appreciated.

Answer 1

so far I am unable to find any solution for this predicament

You have to use functions that print one (countable) things at a time. An example interface you might want to implement might look like the following:

print_string("Hello");
print_int(5);
print_char('\n');