Re: Patch to avoid unnecessary uses of AC_TRY_RUN

[Alexandre Oliva]

On Feb 19, 2000, Olly Betts <[EMAIL PROTECTED]> wrote:

> This defect is easy enough to correct by making use of your idea of a
> potentially negative array dimension - we can try compiling "int
> a[(char)-1];" which will compile if char is unsigned, and fail if it's
> signed.  Revised patch attached.

But it may fail to compile if char is unsigned and
sizeof(char)==sizeof(unsigned int).

How about:

switch (c) { case 0: case (((char)-1) >= 0): ; }

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