Fix FP leakNoVarFunctionCall (#4243)

* Fix #10857 FN: leakNoVarFunctionCall

* Fix TODO

* Fix #10858 FN: leakNoVarFunctionCall (if ( b && malloc ) )

* #11155 FN: leakNoVarFunctionCall (ternary operator)

* Fix #11157 FN: leakNoVarFunctionCall (switch condition)

* Fix FN constStatement

* Fix FP leakNoVarFunctionCall

* Fix FP leakNoVarFunctionCall

* Format

* Fix FP leakNoVarFunctionCall with unknown function

* Fix FP leakNoVarFunctionCall

Author: chrchr-github

lib/checkmemoryleak.cpp

@@ -1011,6 +1011,8 @@ void CheckMemoryLeakNoVar::checkForUnreleasedInputArgument(const Scope *scope)
             functionName == "return")
             continue;
 
+        if (Token::simpleMatch(tok->next()->astParent(), "(")) // passed to another function
+            continue;
         if (!tok->isKeyword() && mSettings->library.isNotLibraryFunction(tok))
             continue;
         if (!CheckMemoryLeakInFunction::test_white_list(functionName, mSettings, mTokenizer->isCPP()))

test/testmemleak.cpp

@@ -2417,7 +2417,7 @@ class TestMemleakNoVar : public TestFixture {
         ASSERT_EQUALS("", errout.str());
 
         check("struct S {\n"
-              "    static void load(const QString & projPath) {\n"
+              "    static void load(const QString& projPath) {\n"
               "        if (proj_)\n"
               "            return;\n"
               "        proj_ = new ProjectT(projPath);\n"
@@ -2427,6 +2427,12 @@ class TestMemleakNoVar : public TestFixture {
               "    static Core::ProjectBase* proj_;\n"
               "};\n");
         ASSERT_EQUALS("", errout.str());
+
+        check("void f(const std::string& s, int n) {\n"
+              "    std::unique_ptr<char[]> u;\n"
+              "    u.reset(strcpy(new char[n], s.c_str()));\n"
+              "};\n");
+        ASSERT_EQUALS("", errout.str());
     }
 
     void missingAssignment() {