Fixed #4608 (false positive: (style) struct or union member is never …

…used.)

lib/path.cpp

@@ -206,7 +206,13 @@ bool Path::isCPP(const std::string &path)
     return(getFilenameExtension(path) == ".C");
 }
 
-bool Path::acceptFile(const std::string &filename)
+bool Path::acceptFile(const std::string &path)
 {
-    return(Path::isCPP(filename) || Path::isC(filename));
+    return !Path::isHeader(path) && (Path::isCPP(path) || Path::isC(path));
+}
+
+bool Path::isHeader(const std::string &path)
+{
+    const std::string extension = getFilenameExtensionInLowerCase(path);
+    return (extension.compare(0, 2, ".h") == 0);
 }

lib/path.h

@@ -104,24 +104,32 @@ class CPPCHECKLIB Path {
     /**
      * @brief Check if the file extension indicates that it's a C/C++ source file.
      * Check if the file has source file extension: *.c;*.cpp;*.cxx;*.c++;*.cc;*.txx
-     * @param filename filename to check
+     * @param path filename to check. path info is optional
      * @return returns true if the file extension indicates it should be checked
      */
     static bool acceptFile(const std::string &filename);
 
     /**
      * @brief Identify language based on file extension.
-     * @param extensionInLowerCase e.g. ".c"
+     * @param path filename to check. path info is optional
      * @return true if extension is meant for C files
      */
-    static bool isC(const std::string &extensionInLowerCase);
+    static bool isC(const std::string &path);
 
     /**
      * @brief Identify language based on file extension.
-     * @param extensionInLowerCase e.g. ".cpp"
+     * @param path filename to check. path info is optional
      * @return true if extension is meant for C++ files
      */
     static bool isCPP(const std::string &extensionInLowerCase);
+
+private:
+    /**
+     * @brief Is filename a header based on file extension
+     * @param path filename to check. path info is optional
+     * @return true if filename extension is meant for headers
+     */
+    static bool isHeader(const std::string &path);
 };
 
 /// @}

test/testpath.cpp

@@ -74,6 +74,10 @@ class TestPath : public TestFixture {
         ASSERT(Path::acceptFile("index")==false);
         ASSERT(Path::acceptFile("")==false);
         ASSERT(Path::acceptFile("C")==false);
+
+        // don't accept any headers
+        ASSERT_EQUALS(false, Path::acceptFile("index.h"));
+        ASSERT_EQUALS(false, Path::acceptFile("index.hpp"));
     }
 
     void getRelative() const {