clang/test/Sema/attr-musttail.c

   1 // RUN: %clang_cc1 -verify -fsyntax-only %s
   2
   3 int NotAProtoType(); // expected-note{{add 'void' to the parameter list to turn an old-style K&R function declaration into a prototype}}
   4 int TestCalleeNotProtoType(void) {
   5   __attribute__((musttail)) return NotAProtoType(); // expected-error{{'musttail' attribute requires that both caller and callee functions have a prototype}}
   6 }
   7
   8 int ProtoType(void);
   9 int TestCallerNotProtoType() {                  // expected-note{{add 'void' to the parameter list to turn an old-style K&R function declaration into a prototype}}
  10   __attribute__((musttail)) return ProtoType(); // expected-error{{'musttail' attribute requires that both caller and callee functions have a prototype}}
  11 }
  12
  13 int TestProtoType(void) {
  14   return ProtoType();
  15 }