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diff --git a/sourcecodes/localscore/Constants.h b/sourcecodes/localscore/Constants.h
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+/*
+ *  R : A Computer Language for Statistical Data Analysis
+ *  Copyright (C) 1995, 1996  Robert Gentleman and Ross Ihaka
+ *  Copyright (C) 1998-2012   The R Core Team.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser General Public License as published by
+ *  the Free Software Foundation; either version 2.1 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with this program; if not, a copy is available at
+ *  http://www.r-project.org/Licenses/
+ */
+
+/* Included by R.h: API */
+
+#ifndef R_EXT_CONSTANTS_H_
+#define R_EXT_CONSTANTS_H_
+
+/* usually in math.h, but not with strict C99 compliance */
+#ifndef M_PI
+#define M_PI 3.141592653589793238462643383279502884197169399375
+#endif
+
+#ifndef STRICT_R_HEADERS
+#define PI             M_PI
+#include <float.h>  /* Defines the rest, at least in C99 */
+#define SINGLE_EPS     FLT_EPSILON
+#define SINGLE_BASE    FLT_RADIX
+#define SINGLE_XMIN    FLT_MIN
+#define SINGLE_XMAX    FLT_MAX
+#define DOUBLE_DIGITS  DBL_MANT_DIG
+#define DOUBLE_EPS     DBL_EPSILON
+#define DOUBLE_XMAX    DBL_MAX
+#define DOUBLE_XMIN    DBL_MIN
+#endif
+
+#endif /* R_EXT_CONSTANTS_H_ */