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      1 // RUN: %clang_cc1 -fsyntax-only -verify %s -std=c++11 -triple=x86_64-linux-gnu
      2 
      3 int f(); // expected-note {{declared here}}
      4 
      5 static_assert(f(), "f"); // expected-error {{static_assert expression is not an integral constant expression}} expected-note {{non-constexpr function 'f' cannot be used in a constant expression}}
      6 static_assert(true, "true is not false");
      7 static_assert(false, "false is false"); // expected-error {{static_assert failed "false is false"}}
      8 
      9 void g() {
     10     static_assert(false, "false is false"); // expected-error {{static_assert failed "false is false"}}
     11 }
     12 
     13 class C {
     14     static_assert(false, "false is false"); // expected-error {{static_assert failed "false is false"}}
     15 };
     16 
     17 template<int N> struct T {
     18     static_assert(N == 2, "N is not 2!"); // expected-error {{static_assert failed "N is not 2!"}}
     19 };
     20 
     21 T<1> t1; // expected-note {{in instantiation of template class 'T<1>' requested here}}
     22 T<2> t2;
     23 
     24 template<typename T> struct S {
     25     static_assert(sizeof(T) > sizeof(char), "Type not big enough!"); // expected-error {{static_assert failed "Type not big enough!"}}
     26 };
     27 
     28 S<char> s1; // expected-note {{in instantiation of template class 'S<char>' requested here}}
     29 S<int> s2;
     30 
     31 static_assert(false, L"\xFFFFFFFF"); // expected-error {{static_assert failed L"\xFFFFFFFF"}}
     32 static_assert(false, u"\U000317FF"); // expected-error {{static_assert failed u"\U000317FF"}}
     33 // FIXME: render this as u8"\u03A9"
     34 static_assert(false, u8""); // expected-error {{static_assert failed u8"\316\251"}}
     35 static_assert(false, L"\u1234"); // expected-error {{static_assert failed L"\x1234"}}
     36 static_assert(false, L"\x1ff" "0\x123" "fx\xfffff" "goop"); // expected-error {{static_assert failed L"\x1FF""0\x123""fx\xFFFFFgoop"}}
     37 
     38 template<typename T> struct AlwaysFails {
     39   // Only give one error here.
     40   static_assert(false, ""); // expected-error {{static_assert failed}}
     41 };
     42 AlwaysFails<int> alwaysFails;
     43 
     44 template<typename T> struct StaticAssertProtected {
     45   static_assert(__is_literal(T), ""); // expected-error {{static_assert failed}}
     46   static constexpr T t = {}; // no error here
     47 };
     48 struct X { ~X(); };
     49 StaticAssertProtected<int> sap1;
     50 StaticAssertProtected<X> sap2; // expected-note {{instantiation}}
     51 
     52 static_assert(true); // expected-warning {{C++1z extension}}
     53 static_assert(false); // expected-error-re {{failed{{$}}}} expected-warning {{extension}}
     54