add test

Author: ludviggunne

test/testtokenize.cpp

@@ -464,6 +464,8 @@ class TestTokenizer : public TestFixture {
         TEST_CASE(funcnameInParenthesis1); // #13554
         TEST_CASE(funcnameInParenthesis2); // #13578
         TEST_CASE(funcnameInParenthesis3); // #13585
+
+        TEST_CASE(genericInIf); // #13561
     }
 
 #define tokenizeAndStringify(...) tokenizeAndStringify_(__FILE__, __LINE__, __VA_ARGS__)
@@ -8389,6 +8391,12 @@ class TestTokenizer : public TestFixture {
         ASSERT_EQUALS(par->astOperand1(), f->astParent() /* :: */);
         ASSERT(Token::simpleMatch(par->astOperand2(), ","));
     }
+
+    void genericInIf() { // #13561
+        const char code[] = "  if (_Generic(s, char * : 1, const float * : 2, volatile int * : 3, default : 0)) {}";
+        const char ast[] = "(( if (( _Generic (, (, (, (, s (: char 1)) (: float 2)) (: int 3)) (: default 0))))";
+        ASSERT_EQUALS(ast, testAst(code, AstStyle::Z3));
+    }
 };
 
 REGISTER_TEST(TestTokenizer)