ceph/src/boost/libs/wave/test/testwave/testfiles/t_1_030.cpp

   1 /*=============================================================================
   2     Boost.Wave: A Standard compliant C++ preprocessor library
   3     http://www.boost.org/
   4
   5     Copyright (c) 2001-2012 Hartmut Kaiser. Distributed under the Boost
   6     Software License, Version 1.0. (See accompanying file
   7     LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   8 =============================================================================*/
   9
  10 // Tests, whether an empty macro prevents another macro from expansion
  11
  12 #define EMPTY()
  13 #define SCAN(x) x
  14 #define MACRO(x) (x)
  15
  16 //R #line 17 "t_1_030.cpp"
  17 SCAN( MACRO EMPTY() )(1)    //R (1)
  18
  19 //H 10: t_1_030.cpp(12): #define
  20 //H 08: t_1_030.cpp(12): EMPTY()=
  21 //H 10: t_1_030.cpp(13): #define
  22 //H 08: t_1_030.cpp(13): SCAN(x)=x
  23 //H 10: t_1_030.cpp(14): #define
  24 //H 08: t_1_030.cpp(14): MACRO(x)=(x)
  25 //H 00: t_1_030.cpp(17): SCAN( MACRO EMPTY() ), [t_1_030.cpp(13): SCAN(x)=x]
  26 //H 00: t_1_030.cpp(17): EMPTY(), [t_1_030.cpp(12): EMPTY()=]
  27 //H 02:
  28 //H 03: _
  29 //H 02:  MACRO
  30 //H 03: MACRO
  31 //H 00: t_1_030.cpp(17): MACRO(1), [t_1_030.cpp(14): MACRO(x)=(x)]
  32 //H 02: (1)
  33 //H 03: (1)