xref: /llvm-project/clang/test/SemaCXX/attr-flatten.cpp (revision 41af7c2fdc8cc2ef186669dcb21cac58d5bd69ee)
1*41af7c2fSPeter Collingbourne // RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
2*41af7c2fSPeter Collingbourne 
3*41af7c2fSPeter Collingbourne int i __attribute__((flatten)); // expected-error {{'flatten' attribute only applies to functions}}
4*41af7c2fSPeter Collingbourne 
5*41af7c2fSPeter Collingbourne void f1() __attribute__((flatten));
6*41af7c2fSPeter Collingbourne void f2() __attribute__((flatten(1))); // expected-error {{'flatten' attribute takes no arguments}}
7*41af7c2fSPeter Collingbourne 
8*41af7c2fSPeter Collingbourne template <typename T>
9*41af7c2fSPeter Collingbourne void tf1() __attribute__((flatten));
10*41af7c2fSPeter Collingbourne 
11*41af7c2fSPeter Collingbourne int f3(int __attribute__((flatten)), int); // expected-error{{'flatten' attribute only applies to functions}}
12*41af7c2fSPeter Collingbourne 
13*41af7c2fSPeter Collingbourne struct A {
14*41af7c2fSPeter Collingbourne   int f __attribute__((flatten));  // expected-error{{'flatten' attribute only applies to functions}}
15*41af7c2fSPeter Collingbourne   void mf1() __attribute__((flatten));
16*41af7c2fSPeter Collingbourne   static void mf2() __attribute__((flatten));
17*41af7c2fSPeter Collingbourne };
18*41af7c2fSPeter Collingbourne 
19*41af7c2fSPeter Collingbourne int ci [[gnu::flatten]]; // expected-error {{'flatten' attribute only applies to functions}}
20*41af7c2fSPeter Collingbourne 
21*41af7c2fSPeter Collingbourne [[gnu::flatten]] void cf1();
22*41af7c2fSPeter Collingbourne [[gnu::flatten(1)]] void cf2(); // expected-error {{'flatten' attribute takes no arguments}}
23*41af7c2fSPeter Collingbourne 
24*41af7c2fSPeter Collingbourne template <typename T>
25*41af7c2fSPeter Collingbourne [[gnu::flatten]]
26*41af7c2fSPeter Collingbourne void ctf1();
27*41af7c2fSPeter Collingbourne 
28*41af7c2fSPeter Collingbourne int cf3(int c[[gnu::flatten]], int); // expected-error{{'flatten' attribute only applies to functions}}
29*41af7c2fSPeter Collingbourne 
30*41af7c2fSPeter Collingbourne struct CA {
31*41af7c2fSPeter Collingbourne   int f [[gnu::flatten]];  // expected-error{{'flatten' attribute only applies to functions}}
32*41af7c2fSPeter Collingbourne   [[gnu::flatten]] void mf1();
33*41af7c2fSPeter Collingbourne   [[gnu::flatten]] static void mf2();
34*41af7c2fSPeter Collingbourne };
35