A new recommendation has been added, in section 15.4.2 (on page 240):
This is due to the use of non-standard literal suffixes - L / LL, UL / ULL - in different compilers
Recommendation: Use macros to abstract away differences for 64-bit integer literals.
This is due to the use of non-standard literal suffixes - L / LL, UL / ULL - in different compilers