hexfloat.cpp 1.0 KB

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  1. // RUN: %clang_cc1 -fsyntax-only -verify -pedantic %s
  2. // RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify -pedantic %s
  3. float f = 0x1p+1; // expected-warning{{hexadecimal floating constants are a C99 feature}}
  4. double e = 0x.p0; //expected-error{{hexadecimal floating constants require a significand}}
  5. double d = 0x.2p2; // expected-warning{{hexadecimal floating constants are a C99 feature}}
  6. float g = 0x1.2p2; // expected-warning{{hexadecimal floating constants are a C99 feature}}
  7. double h = 0x1.p2; // expected-warning{{hexadecimal floating constants are a C99 feature}}
  8. // PR12717: In order to minimally diverge from the C++ standard, we do not lex
  9. // 'p[+-]' as part of a pp-number unless the token starts 0x and doesn't contain
  10. // an underscore.
  11. double i = 0p+3; // expected-error{{invalid suffix 'p' on integer constant}}
  12. #define PREFIX(x) foo ## x
  13. double foo0p = 1, j = PREFIX(0p+3); // ok
  14. double k = 0x42_amp+3; // expected-error-re{{{{invalid suffix '_amp' on integer constant|no matching literal operator for call to 'operator "" _amp'}}}}