27 lines · c
1// RUN: %clang_cc1 -fsyntax-only -verify -Wno-strict-prototypes %s2// RUN: not %clang_cc1 -fsyntax-only -Wno-strict-prototypes %s -fdiagnostics-parseable-fixits 2>&1 | \3// RUN: FileCheck %s --check-prefix=C4// RUN: not %clang_cc1 -fsyntax-only -Wno-strict-prototypes %s -fdiagnostics-parseable-fixits -x c++ -std=c++11 2>&1 | \5// RUN: FileCheck %s --check-prefix=CXX116int x __attribute__((sentinel)); //expected-warning{{'sentinel' attribute only applies to functions, methods and blocks}}7 8void f1(int a, ...) __attribute__ ((sentinel)); // expected-note {{function has been explicitly marked sentinel here}}9void f2(int a, ...) __attribute__ ((sentinel(1)));10 11void f3(int a, ...) __attribute__ ((sentinel("hello"))); //expected-error{{'sentinel' attribute requires parameter 1 to be an integer constant}}12void f4(int a, ...) __attribute__ ((sentinel(1, 2, 3))); //expected-error{{'sentinel' attribute takes no more than 2 arguments}}13void f4(int a, ...) __attribute__ ((sentinel(-1))); //expected-error{{parameter 1 less than zero}}14void f4(int a, ...) __attribute__ ((sentinel(0, 2))); // expected-error{{parameter 2 not 0 or 1}}15 16void f5(int a) __attribute__ ((sentinel)); //expected-warning{{'sentinel' attribute only supported for variadic functions}}17 18 19void f6() __attribute__((__sentinel__)); // expected-warning {{'sentinel' attribute requires named arguments}}20 21void g(void) {22 // The integer literal zero is not a sentinel.23 f1(1, 0); // expected-warning {{missing sentinel in function call}}24// C: fix-it:{{.*}}:{23:10-23:10}:", (void*) 0"25// CXX11: fix-it:{{.*}}:{23:10-23:10}:", nullptr"26}27