summaryrefslogtreecommitdiffstats
path: root/src/vppinfra/xy.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/vppinfra/xy.h')
-rw-r--r--src/vppinfra/xy.h56
1 files changed, 56 insertions, 0 deletions
diff --git a/src/vppinfra/xy.h b/src/vppinfra/xy.h
new file mode 100644
index 00000000000..fb562161a62
--- /dev/null
+++ b/src/vppinfra/xy.h
@@ -0,0 +1,56 @@
+/* (X,Y) coordinates. */
+
+/*
+ Copyright (c) 2008 Eliot Dresselhaus
+
+ Permission is hereby granted, free of charge, to any person obtaining
+ a copy of this software and associated documentation files (the
+ "Software"), to deal in the Software without restriction, including
+ without limitation the rights to use, copy, modify, merge, publish,
+ distribute, sublicense, and/or sell copies of the Software, and to
+ permit persons to whom the Software is furnished to do so, subject to
+ the following conditions:
+
+ The above copyright notice and this permission notice shall be
+ included in all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+#ifndef included_clib_xy_h
+#define included_clib_xy_h
+
+#include <vppinfra/types.h>
+
+/* Basic definitions: coordinates and points. */
+typedef double xy_float_t;
+typedef __complex__ double xy_t;
+typedef __complex__ int ixy_t;
+
+typedef __complex__ char i8xy_t;
+typedef __complex__ short i16xy_t;
+typedef __complex__ int i32xy_t;
+
+/* X/Y components of a point: can be used as either rvalue/lvalue. */
+#define xy_x(x) __real__ (x)
+#define xy_y(x) __imag__ (x)
+
+/* Unit vectors in x/y directions. */
+#define xy_x_unit_vector (1)
+#define xy_y_unit_vector (1I)
+
+#endif /* included_clib_xy_h */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */