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annotate src/dsp/pi.h @ 179:433e3aac9e52

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Add pi.h. Let's stop messing around with platform-specific defines
author Chris Cannam <c.cannam@qmul.ac.uk>
date Mon, 07 Sep 2015 12:01:14 +0100
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c@179 1
c@179 2 #ifndef PI_H
c@179 3 #define PI_H
c@179 4
c@179 5 #include <cmath>
c@179 6
c@179 7 #ifndef M_PI
c@179 8 #define M_PI 3.14159265358979323846
c@179 9 #endif
c@179 10
c@179 11 #endif