Message-ID:	<39DC061F.97DFBB0D@trollope.org>
From:	Michael Powe <michael+netscape AT trollope DOT org>
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Newsgroups:	comp.os.msdos.djgpp
Subject:	problem with math.h
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Date:	Wed, 04 Oct 2000 21:39:59 -0700
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Hi,

I have a little something peculiar here.  I #included math.h in order to
use the PI macro.  However, compiling with 

gcc -Wall -ansi -pedantic ... -lm 

results in an error that `PI' is undeclared.  I can get rid of this
error and get gcc to compile the program by removing -ansi -pedantic
from the command line.

Looking in math.h, I see that the section in which PI is #defined is
preceded by #ifndef __STRICT_ANSI__ and #ifndef _POSIX_SOURCE.  

Does ANSI C exclude a value for PI?  Is there some reason why the
standard library should not provide one?

Thanks for any help.

mp

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