Added Coord and abs headers

diff --git a/include/libmormegil/Coord.hh b/include/libmormegil/Coord.hh
new file mode 100644 (file)
index 0000000..d5b72d5
--- /dev/null
+++ b/include/libmormegil/Coord.hh
@@ -0,0 +1,95 @@
+// libmormegil/Coord.hh
+//
+// Copyright 2010 Martin Read. All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the author nor the names of any other contributors
+//    may be used to endorse or promote products derived from this software
+//    without their specific prior written permission.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+
+// We need std::max<>, std::min<>. The thing called std::abs<> is in <complex>
+// and is intended for use on complex numbers; dude what the fuck?
+
+#ifndef libmormegil_Coord_hh
+#define libmormegil_Coord_hh
+#include <algorithm>
+
+#ifndef libmormegil_abs_hh
+#include <libmormegil/abs.hh>
+#endif
+
+namespace libmormegil
+{
+    template<typename T> struct basic_offset
+    {
+        typedef basic_offset<T>& ref;
+        typedef const basic_offset<T>& const_ref;
+        int y;
+        int x;
+        ref operator +=(const_ref right)
+        {
+            y += right.y;
+            x += right.x;
+            return *this;
+        }
+
+        ref operator -=(const_ref right)
+        {
+            y -= right.y;
+            x -= right.x;
+            return *this;
+        }
+
+        int length_inf() { return std::min(std::abs(y), std::abs(x)); }
+    };
+
+    template<typename T> struct basic_coord
+    {
+        typedef basic_coord<T>& ref;
+        typedef const basic_coord<T>& const_ref;
+        int y;
+        int x;
+        ref operator +=(const basic_offset<T>& right)
+        {
+            y += right.y;
+            x += right.x;
+            return *this;
+        }
+        ref operator -=(const basic_offset<T>& right)
+        {
+            y -= right.y;
+            x -= right.x;
+            return *this;
+        }
+        basic_offset<T> operator -(const_ref right) const
+        {
+            basic_offset<T> tmp = { y - right.y, x - right.x };
+            return tmp;
+        }
+    };
+
+    typedef basic_offset<int> Offset;
+    typedef basic_coord<int> Coord;
+}
+#endif // libmormegil_Coord_hh
+
+// vim:ts=8:sw=4:expandtab

diff --git a/include/libmormegil/abs.hh b/include/libmormegil/abs.hh
new file mode 100644 (file)
index 0000000..9200e55
--- /dev/null
+++ b/include/libmormegil/abs.hh
@@ -0,0 +1,41 @@
+// libmormegil/abs.hh
+//
+// Copyright 2010 Martin Read. All rights reserved.
+// 
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+// 3. Neither the name of the author nor the names of any other contributors
+//    may be used to endorse or promote products derived from this software
+//    without their specific prior written permission.
+// 
+// THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+
+#ifndef libmormegil_abs_hh
+#define libmormegil_abs_hh
+
+namespace libmormegil
+{
+    inline template<typename T> T abs(const T& i) { i < T(0) ? -i : i; }
+        int length_inf() { return std::min(std::abs(y), std::abs(x)); }
+    };
+}
+#endif // libmormegil_abs_hh
+
+// vim:ts=8:sw=4:expandtab
+