Fixed #1112 (cppcheck fails because of accented characters in comments)

lib/preprocessor.cpp

@@ -183,6 +183,19 @@ std::string Preprocessor::removeComments(const std::string &str, const std::stri
         if (ch & 0x80)
             throw std::runtime_error("The code contains characters that are unhandled");
 
+        if (str.compare(i, 6, "#error") == 0 || str.compare(i, 8, "#warning") == 0)
+        {
+            if (str.compare(i, 6, "#error") == 0)
+                code << "#error";
+
+            i = str.find("\n", i);
+            if (i == std::string::npos)
+                break;
+
+            --i;
+            continue;
+        }
+
         // We have finished a line that didn't contain any comment
         // (the '\n' is swallowed when a // comment is detected)
         if (ch == '\n' && !suppressionIDs.empty())

test/testpreprocessor.cpp

@@ -78,6 +78,9 @@ private:
         // #error => don't extract any code
         TEST_CASE(error1);
 
+        // #error with extended chars
+        TEST_CASE(error2);
+
         // Handling include guards (don't create extra configuration for it)
         TEST_CASE(includeguard);
 
@@ -419,6 +422,18 @@ private:
     }
 
 
+    void error2()
+    {
+        const char filedata[] = "#error ê\n"
+                                "#warning ê\n"
+                                "123";
+
+        // Read string..
+        std::istringstream istr(filedata);
+        ASSERT_EQUALS("#error\n\n123", Preprocessor::read(istr));
+    }
+
+
     void includeguard()
     {
         // Handling include guards..