Path: added join() with 3 paths

Author: firewave

lib/path.cpp

@@ -458,3 +458,8 @@ std::string Path::join(std::string path1, std::string path2)
         return path2;
     return ((path1.back() == '/') ? path1 : (path1 + "/")) + path2;
 }
+
+std::string Path::join(std::string path1, std::string path2, std::string path3)
+{
+    return Path::join(Path::join(std::move(path1), std::move(path2)), std::move(path3));
+}

lib/path.h

@@ -206,6 +206,13 @@ class CPPCHECKLIB Path {
      * @return the joined path with normalized slashes
      */
     static std::string join(std::string path1, std::string path2);
+
+    /**
+     * @brief join 3 paths with '/' separators
+     * if path2 is an absolute path path1 will be dismissed.
+     * @return the joined path with normalized slashes
+     */
+    static std::string join(std::string path1, std::string path2, std::string path3);
 };
 
 /// @}

test/testpath.cpp

@@ -202,6 +202,8 @@ class TestPath : public TestFixture {
         //ASSERT_EQUALS("", Path::join("S:/a", "S:/b"));
         //ASSERT_EQUALS("", Path::join("S:/a", "S:\\b"));
         //ASSERT_EQUALS("", Path::join("S:/a", "/b"));
+
+        ASSERT_EQUALS("a/b/c", Path::join("a", "b", "c"));
     }
 
     void isDirectory() const {