bug in cpp in SV/363 r3.2 and older

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1 total messages Started by David F. Carlson Tue, 08 Aug 1989 18:39

#53

Author: David F. Carlson
Date: Tue, 08 Aug 1989 18:39

26 lines
1025 bytes

For the following program:

#include <stdio.h>
#include <nan.h>

float g = 1.0;

main()
{
fprintf(stderr,"I'm OK = %d.\n", IsNANorINF(g));
}

Firstly, required define _IEEE is missing from cpp(1).
Secondly, putting a #define _IEEE before the include of <nan.h>
above will cause cpp to barf on the next line of the file nan.h
after the #if _IEEE.  However, -D_IEEE on the command line will 
cause the file to parse and compile and execute correctly.

This is true under ESIX 3.2 and Microport 3.0e.

-- 
David F. Carlson, Micropen, Inc.
micropen!dave@ee.rochester.edu

"The faster I go, the behinder I get." --Lewis Carroll

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