common/static_check.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Copyright (c) 2000-2014 Ericsson Telecom AB
   3 // All rights reserved. This program and the accompanying materials
   4 // are made available under the terms of the Eclipse Public License v1.0
   5 // which accompanies this distribution, and is available at
   6 // http://www.eclipse.org/legal/epl-v10.html
   7 ///////////////////////////////////////////////////////////////////////////////
   8 #ifndef STATIC_CHECK_HH
   9 #define STATIC_CHECK_HH
  10
  11 #ifdef __cplusplus
  12
  13 template<bool> struct CompileTimeError;
  14 template<>     struct CompileTimeError<true> {}; // false never defined
  15
  16 #define STATIC_ASSERT(expr) CompileTimeError<(expr) != 0>()
  17
  18 #else
  19
  20 #define STATIC_ASSERT(x) do { enum { assert_static_ = 1/(x) }; } while(0)
  21
  22 #endif
  23
  24 #define ENSURE_EQUAL(x, y) STATIC_ASSERT((int)(x) == (int)(y));
  25
  26 #endif