clang/test/Lexer/cxx2c-raw-strings.cpp

   1 // RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify=precxx26,expected -Wc++26-extensions %s
   2 // RUN: %clang_cc1 -std=c++2c -fsyntax-only -verify=cxx26,expected -Wpre-c++26-compat %s
   3
   4 int main() {
   5   (void) R"abc`@$(foobar)abc`@$";
   6   //precxx26-warning@-1 {{'`' in a raw string literal delimiter is a C++2c extension}}
   7   //precxx26-warning@-2 {{'@' in a raw string literal delimiter is a C++2c extension}}
   8   //precxx26-warning@-3 {{'$' in a raw string literal delimiter is a C++2c extension}}
   9   //cxx26-warning@-4 {{'`' in a raw string literal delimiter is incompatible with standards before C++2c}}
  10   //cxx26-warning@-5 {{'@' in a raw string literal delimiter is incompatible with standards before C++2c}}
  11   //cxx26-warning@-6 {{'$' in a raw string literal delimiter is incompatible with standards before C++2c}}
  12
  13   (void) R"\t()\t";
  14   // expected-error@-1 {{invalid character '\' in raw string delimiter}}
  15   // expected-error@-2 {{expected expression}}
  16
  17   (void) R" () ";
  18   // expected-error@-1 {{invalid character ' ' in raw string delimiter}}
  19   // expected-error@-2 {{expected expression}}
  20
  21   (void) R"\()\";
  22   // expected-error@-1 {{invalid character '\' in raw string delimiter}}
  23   // expected-error@-2 {{expected expression}}
  24
  25   (void) R"@(foo)@";
  26   // cxx26-warning@-1 {{'@' in a raw string literal delimiter is incompatible with standards before C++2c}}
  27   // precxx26-warning@-2 {{'@' in a raw string literal delimiter is a C++2c extension}}
  28 }