errmsg: Added errormessage for 'the class 'classname' doesn't have a constructor'

Makefile

@@ -89,7 +89,7 @@ install:	cppcheck
 src/checkbufferoverrun.o: src/checkbufferoverrun.cpp src/checkbufferoverrun.h src/tokenize.h src/settings.h src/errorlogger.h src/token.h
 	g++ $(CXXFLAGS) -c -o src/checkbufferoverrun.o src/checkbufferoverrun.cpp
 
-src/checkclass.o: src/checkclass.cpp src/checkclass.h src/tokenize.h src/settings.h src/errorlogger.h src/token.h
+src/checkclass.o: src/checkclass.cpp src/checkclass.h src/tokenize.h src/settings.h src/errorlogger.h src/token.h src/errormessage.h
 	g++ $(CXXFLAGS) -c -o src/checkclass.o src/checkclass.cpp
 
 src/checkfunctionusage.o: src/checkfunctionusage.cpp src/checkfunctionusage.h src/tokenize.h src/settings.h src/errorlogger.h src/token.h

src/checkclass.cpp

@@ -19,6 +19,8 @@
 //---------------------------------------------------------------------------
 #include "checkclass.h"
 
+#include "errormessage.h"
+
 #include <locale>
 
 #include <string>
@@ -385,10 +387,7 @@ void CheckClass::constructors()
                 struct VAR *varlist = ClassChecking_GetVarList(tok1);
                 if (varlist)
                 {
-                    std::ostringstream ostr;
-                    ostr << _tokenizer->fileLine(tok1);
-                    ostr << " The class '" << classNameToken->str() << "' has no constructor";
-                    _errorLogger->reportErr(ostr.str());
+                    _errorLogger->reportErr(ErrorMessage::noConstructor(_tokenizer, tok1, classNameToken->str()));
                 }
                 // Delete the varlist..
                 while (varlist)

src/cppcheck.cpp

@@ -271,6 +271,7 @@ void CppCheck::checkFile(const std::string &code, const char FileName[])
         checkMemoryLeak.CheckMemoryLeak();
 
     // Check that all class constructors are ok.
+    if (ErrorMessage::noConstructor(_settings))
         checkClass.constructors();
 
     // Check that all base classes have virtual destructors

src/errormessage.h

@@ -30,6 +30,15 @@ private:
     ErrorMessage() { }
     static std::string msg1(const Tokenizer *tokenizer, const Token *Location);
 public:
+    static std::string noConstructor(const Tokenizer *tokenizer, const Token *Location, const std::string &classname)
+    {
+        return msg1(tokenizer, Location) + "The class '" + classname + "' has no constructor";
+    }
+    static bool noConstructor(const Settings &s)
+    {
+        return s._checkCodingStyle;
+    }
+
     static std::string memleak(const Tokenizer *tokenizer, const Token *Location, const std::string &varname)
     {
         return msg1(tokenizer, Location) + "Memory leak: " + varname + "";

test/testconstructors.cpp

@@ -83,7 +83,7 @@ private:
               "    int i;\n"
               "};\n");
         std::string actual(errout.str());
-        std::string expected("[test.cpp:1] The class 'Fred' has no constructor\n");
+        std::string expected("[test.cpp:1]: The class 'Fred' has no constructor\n");
         ASSERT_EQUALS(expected, actual);
     }
 

tools/errmsg.cpp

@@ -50,6 +50,9 @@ int main()
     // Error messages..
     std::list<Message> err;
 
+	// checkclass.cpp..
+	err.push_back(Message("noConstructor", Message::STYLE, "The class '%1' has no constructor", "classname"));
+
     // checkmemoryleak.cpp..
     err.push_back(Message("memleak", 0, "Memory leak: %1", "varname"));
     err.push_back(Message("resourceLeak", 0, "Resource leak: %1", "varname"));