clang/test/Lexer/cxx1y_binary_literal.cpp

   1 // RUN: %clang_cc1 -std=c++1y %s -verify
   2
   3 static_assert(0b1001 == 9, "");
   4
   5 using I = int;
   6 using I = decltype(0b101001);
   7 using ULL = unsigned long long;
   8 using ULL = decltype(0b10101001ULL);
   9
  10 constexpr unsigned long long operator""_foo(unsigned long long n) {
  11   return n * 2;
  12 }
  13 static_assert(0b10001111_foo == 286, "");
  14
  15 int k1 = 0b1234; // expected-error {{invalid digit '2' in binary constant}}
  16 // FIXME: If we ever need to support a standard suffix starting with [a-f],
  17 // we'll need to rework our binary literal parsing rules.
  18 int k2 = 0b10010f; // expected-error {{invalid digit 'f' in binary constant}}
  19 int k3 = 0b10010g; // expected-error {{invalid suffix 'g' on integer constant}}
  20 int k4 = 0b; // expected-error {{invalid digit 'b' in octal constant}}