From: "Patrick Mitran" <pmitran AT tsp DOT ece DOT mcgill DOT ca>
Newsgroups: comp.os.msdos.djgpp
Subject: M_PI and -ansi
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Message-ID: <TMoX6.1671$Ug2.550858@carnaval.risq.qc.ca>
Date: Mon, 18 Jun 2001 15:05:23 GMT
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

Hi,

when I compile with the -ansi switch, it seems that I don't have a
predefined
constant for PI in math.h. This can easily be fixed by defining my own
constant as

const real pi = 3.14159265358979323846;

However, I believe this is bad style. What would be a good way of  getting
a numerically accurate value of PI that is ANSI compliant?

Thanks,
Patrick