[seiscomp, scanloc] Install, add .gitignore

include/seiscomp/math/math.h

@@ -0,0 +1,80 @@
+/***************************************************************************
+ * Copyright (C) gempa GmbH                                                *
+ * All rights reserved.                                                    *
+ * Contact: gempa GmbH (seiscomp-dev@gempa.de)                             *
+ *                                                                         *
+ * GNU Affero General Public License Usage                                 *
+ * This file may be used under the terms of the GNU Affero                 *
+ * Public License version 3.0 as published by the Free Software Foundation *
+ * and appearing in the file LICENSE included in the packaging of this     *
+ * file. Please review the following information to ensure the GNU Affero  *
+ * Public License version 3.0 requirements will be met:                    *
+ * https://www.gnu.org/licenses/agpl-3.0.html.                             *
+ *                                                                         *
+ * Other Usage                                                             *
+ * Alternatively, this file may be used in accordance with the terms and   *
+ * conditions contained in a signed written agreement between you and      *
+ * gempa GmbH.                                                             *
+ ***************************************************************************/
+
+
+#ifndef SEISCOMP_MATH_MATH_H
+#define SEISCOMP_MATH_MATH_H
+
+
+#include <seiscomp/core.h>
+#include <cmath>
+#include <complex>
+
+
+#ifndef deg2rad
+#define deg2rad(d) (M_PI*(d)/180.0)
+#endif
+#ifndef rad2deg
+#define rad2deg(d) (180.0*(d)/M_PI)
+#endif
+
+#ifndef HALF_PI
+#define HALF_PI (M_PI/2)
+#endif
+
+
+#if defined(_MSC_VER)
+	#include <float.h>
+#endif
+
+
+namespace Seiscomp {
+namespace Math {
+
+
+using Complex = std::complex<double>;
+using Fraction = std::pair<int, int>;
+
+
+#if defined(WIN32)
+template <typename T>
+inline bool isNaN(T v) { return _isnan(v)!=0; }
+#elif defined(__SUNPRO_CC) || defined(__sun)
+template <typename T>
+inline bool isNaN(T v) { return isnan(v)!=0; }
+#else
+template <typename T>
+inline bool isNaN(T v) { return std::isnan(v)!=0; }
+#endif
+
+/**
+ * @brief Converts a double to a fraction containing numerator and
+ * denominator. If the double value exceeds the numeric integer limits
+ * numeric_limits<int>::max()/1 or numeric_limits<int>::min()/1 is returned.
+ * @param value The double number to be converted.
+ * @return Fraction containing numerator and denominator.
+ */
+Fraction double2frac(double value);
+
+
+} // namespace Math
+} // namespace Seiscomp
+
+
+#endif