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Re: builtin float.h macros


On Tue, 3 Sep 2002, Richard Henderson wrote:

> What would break if we unconditionally interpreted p- as 
> valid for a preprocessor number?  I can't think of any
> alternate valid interpretations of 0x1p-22...

Proper lexing of preprocessing numbers is tested in
gcc.dg/c90-hexfloat-2.c.  I don't know whether such a test can be
constructed involving only preprocesing numbers that can be converted from
preprocessing tokens to tokens.

-- 
Joseph S. Myers
jsm28@cam.ac.uk


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