Null revisited (briefly)

[Guy Harris]

>>When you assign 'x' to a character, you are assigning an int to a
>>character.  The reader knows that the type mismatch was intentional.
>
>Not if he knows the C language.  A single character written within
>single quotes is a *character constant*.  This isn't an int.

Wanna bet?  The May 13, 1988 dpANS says:

	3.1.3.4 Character constants

	...

	Description

	   An integer character constant is a sequence of one or more
	multibyte characters enclosed in single quotes, as in 'x' or
	'ab'.  A wide character constant is the same except prefixed by
	the letter L. ...

	Semantics

	   An integer character constant has type "int". ...

>'\0' is a special case to permit the representation of non-graphical
>characters (also newline, tab, backslash, return, etc.) and is not
>the same as 0, which is an integer constant.

Wrong.  '\0' *is* the same as 0.