By default, all function now export at least one return value back into the…

By default, all function now export at least one return value back into the Matlab workspace, even if none are requested. This is in line with Matlab's calling convention, where functions called without an lvalue or a semicolon have their first output printed to the terminal

modules/matlab/CMakeLists.txt

@@ -73,8 +73,9 @@ ocv_add_module(matlab   BINDINGS
                                  opencv_nonfree
 )
 
-# set the path to the C++ header parser
-set(HDR_PARSER_PATH ${CMAKE_CURRENT_SOURCE_DIR}/../python/src2)
+# set the path to the C++ header and doc parser
+set(HDR_PARSER_PATH ${CMAKE_SOURCE_DIR}/modules/python/src2)
+set(RST_PARSER_PATH ${CMAKE_SOURCE_DIR}/modules/java/generator)
 
 # set mex compiler options
 prepend("-I" MEX_INCLUDE_DIRS ${CMAKE_CURRENT_SOURCE_DIR}/include)

modules/matlab/generator/templates/template_function_base.cpp

@@ -50,7 +50,7 @@ void mexFunction(int nlhs, mxArray*{% if fun|noutputs %} plhs[]{% else %}*{% end
 
   {% if fun|noutputs %}
   // push the outputs back to matlab
-  for (size_t n = 0; n < static_cast<size_t>(nlhs); ++n) {
+  for (size_t n = 0; n < static_cast<size_t>(std::max(nlhs,1)); ++n) {
     plhs[n] = outputs[n].toMxArray().releaseOwnership();
   }
   {% endif %}