Re: Which is faster?

3.1.3.4 (C89): "An integer character constant is a sequence of one or more
multibyte characters enclosed in single-quotes, as in 'x' or 'ab'."

6.4.4.4(2) (C99): "An integer character constant is a sequence of one or
more multibyte characters enclosed in single-quotes, as in 'x'."

The difference between the above two quotes led me to poke around further
in C99:

I don!t understand what is the differance?

6.4.4.4(10): "The value of an integer character constant containing more
than one character (e.g., 'ab'), or containing a character or escape
sequence that does not map to a single-byte execution character, is
implementation-defined."

What does it mean?
.

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