Multi-character constant warnings

According to the standard (§ The value of an integer character constant containing more than one character (e.g., ‘ab’), […] is implementation-defined. This is valid ISO 9899:2011 C. It compiles without warning under gcc with -Wall, and a “multi-character character constant” warning with -pedantic. From Wikipedia: Multi-character constants (e.g. ‘xy’) are valid, although rarely useful … Read more