[MultiBound] Implement operator= to fix compilation warning.

Author: florent-lamiraux

include/sot/core/multi-bound.hh

@@ -65,6 +65,7 @@ class SOT_CORE_EXPORT MultiBound {
                                                   const MultiBound &m);
   SOT_CORE_EXPORT friend std::istream &operator>>(std::istream &is,
                                                   MultiBound &m);
+  MultiBound& operator=(const MultiBound &other);
 };
 
 /* --------------------------------------------------------------------- */

src/task/multi-bound.cpp

@@ -258,5 +258,14 @@ std::istream &operator>>(std::istream &is, VectorMultiBound &v) {
   return is;
 }
 
+MultiBound& MultiBound::operator=(const MultiBound &other) {
+  mode = other.mode;
+  boundSingle = other.boundSingle;
+  boundSup = other.boundSup;
+  boundInf = other.boundInf;
+  boundSupSetup = other.boundSupSetup;
+  boundInfSetup = other.boundInfSetup;
+  return *this;
+}
 } /* namespace sot */
 } /* namespace dynamicgraph */