E.1.4.5 (220.127.116.11) The value of an integer character constant that contains a character or escape sequence not represented in the basic execution character set or the extended character set for a wide character constant:
E.1.5.2 (18.104.22.168) The result of converting an integer to a shorter signed integer, or the result of converting an unsigned integer to a signed integer of equal length, if the value cannot be represented:
E.1.13.1 (6.8.1) Whether the value of a single-character character constant in a constant expression that controls conditional inclusion matches the value of the same character constant in the execution character set:
The ISO/IEC 9899:1990, Programming Languages- C standard specifies the form and establishes the interpretation of programs written in C. However, this standard leaves a number of issues as implementation-defined, that is, as varying from compiler to compiler. This chapter details these areas. They can be readily compared to the ISO/IEC 9899:1990 standard itself:
Each item uses the same section text as found in the ISO standard.
Each item is preceded by its corresponding section number in the ISO standard.