1 files changed, 79 insertions, 0 deletions
diff --git a/src/ir_key.cpp b/src/ir_key.cpp
new file mode 100644
index 0000000..caa3c96
--- /dev/null
+++ b/src/ir_key.cpp
@@ -0,0 +1,79 @@
+/*
+    cw_binaural~: a binaural synthesis external for pure data
+    by David Doukhan - david.doukhan@gmail.com - http://www.limsi.fr/Individu/doukhan
+    and Anne Sedes - sedes.anne@gmail.com
+    Copyright (C) 2009-2011  David Doukhan and Anne Sedes
+
+    For more details, see CW_binaural~, a binaural synthesis external for Pure Data
+    David Doukhan and Anne Sedes, PDCON09
+
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 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 General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+
+#include "ir_key.hpp"
+
+// The impulse response key comparison function
+// returns true if its first argument is less than its second argument,
+// and false otherwise
+bool	ir_key_isless::operator() (const ir_key& a, const ir_key& b)
+{
+  int	tmp;
+
+  if (a.minp_ap_dec < b.minp_ap_dec)
+    return true;
+  if (a.minp_ap_dec > b.minp_ap_dec)
+    return false;
+
+  if (a.spectral < b.spectral)
+    return true;
+  if (a.spectral > b.spectral)
+    return false;
+
+  if (a.length < b.length)
+    return true;
+  if (a.length > b.length)
+    return false;
+
+  if (a.spectral < b.spectral)
+    return true;
+  if (a.spectral > b.spectral)
+    return false;
+
+  tmp = a.path.compare(b.path);
+  if (tmp < 0)
+    return true;
+  if (tmp > 0)
+    return false;
+
+  tmp = a.iir_regex.compare(b.iir_regex);
+  if (tmp < 0)
+    return true;
+  if (tmp > 0)
+    return false;
+
+  if (a.is_azimuth_first < b.is_azimuth_first)
+    return true;
+  if (a.is_azimuth_first > b.is_azimuth_first)
+    return false;
+
+  if (a.vertical_polar_coords < b.vertical_polar_coords)
+    return true;
+  if (a.vertical_polar_coords > b.vertical_polar_coords)
+    return false;
+
+  // keys are equal, then !(a < b)
+  return false;
+}