Created attachment 282203 [details]
Test case

When an inline function is defined separate from the function body, doxygen will emit a warning that it can not match the class member for the inline function if the parameter names in the function definition do not match those in the function declaration.

Attached is the test case I developed in a ZIP file (with a contained Doxyfile).  There are 2 files in separate directories so that the following directory structure is created;

<root>
 |- Doxyfile
 |- include
    |- l
       |- test3.h
    |- m
       |- test.h

This directory structure was nessecary to reproduce the warning:

C:\Workspace\doxygen>doxygen
C:/Workspace/doxygen/include/m/test.h:23: warning: no uniquely matching class member found for
  template < T >
  int B< T >::col(int j)
Possible candidates:
  const int B< T >::col(int j) const' at line 11 of file C:/Workspace/doxygen/include/m/test.h
  int B< T >::col(int)' at line 16 of file C:/Workspace/doxygen/include/m/test.h