Add tests

Author: ludviggunne

test/testtokenize.cpp

@@ -276,7 +276,8 @@ class TestTokenizer : public TestFixture {
         TEST_CASE(functionAttributeListAfter);
         TEST_CASE(functionAttributeListAfter2);
         TEST_CASE(cppMaybeUnusedBefore);
-        TEST_CASE(cppMaybeUnusedAfter);
+        TEST_CASE(cppMaybeUnusedAfter1);
+        TEST_CASE(cppMaybeUnusedAfter2);
         TEST_CASE(cppMaybeUnusedStructuredBinding);
 
         TEST_CASE(splitTemplateRightAngleBrackets);
@@ -4258,7 +4259,7 @@ class TestTokenizer : public TestFixture {
         ASSERT(var && var->isAttributeMaybeUnused());
     }
 
-    void cppMaybeUnusedAfter() {
+    void cppMaybeUnusedAfter1() {
         const char code[] = "int var [[maybe_unused]] {};";
         const char expected[] = "int var { } ;";
 
@@ -4271,6 +4272,19 @@ class TestTokenizer : public TestFixture {
         ASSERT(var && var->isAttributeMaybeUnused());
     }
 
+    void cppMaybeUnusedAfter2() {
+        const char code[] = "std::string var [[maybe_unused]];";
+        const char expected[] = "std :: string var ;";
+
+        SimpleTokenizer tokenizer(settings0, *this);
+        ASSERT(tokenizer.tokenize(code));
+
+        ASSERT_EQUALS(expected, tokenizer.tokens()->stringifyList(nullptr, false));
+
+        const Token *var = Token::findsimplematch(tokenizer.tokens(), "var");
+        ASSERT(var && var->isAttributeMaybeUnused());
+    }
+
     void cppMaybeUnusedStructuredBinding() {
         const char code[] = "[[maybe_unused]] auto [var1, var2] = f();";
         const char expected[] = "auto [ var1 , var2 ] = f ( ) ;";

test/testunusedvar.cpp

@@ -6532,6 +6532,12 @@ class TestUnusedVar : public TestFixture {
                               "    [[maybe_unused]] char b[1][2];\n"
                               "}");
         ASSERT_EQUALS("", errout_str());
+
+        functionVariableUsage("int main() {\n"
+                              "    std::string a [[maybe_unused]];\n"
+                              "    f();\n"
+                              "}");
+        ASSERT_EQUALS("", errout_str());
     }
 
     void localvarrvalue() { // ticket #13977