Src/Common/myassert.h

   1 // myassert.h
   2 //
   3 // Copyright (c) 2008 The Dasher Team
   4 //
   5 // This file is part of Dasher.
   6 //
   7 // Dasher is free software; you can redistribute it and/or modify
   8 // it under the terms of the GNU General Public License as published by
   9 // the Free Software Foundation; either version 2 of the License, or
  10 // (at your option) any later version.
  11 //
  12 // Dasher is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16 //
  17 // You should have received a copy of the GNU General Public License
  18 // along with Dasher; if not, write to the Free Software
  19 // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  20
  21 #ifndef __assert_h__
  22 #define __assert_h__
  23
  24 #ifdef HAVE_CONFIG_H
  25 #include <config.h>
  26 #endif
  27
  28 // The DASHER_ASSERT macro causes execution to break into the debugger in DEBUG mode
  29 // In non-debug debug builds - no check is done
  30
  31 #ifdef DEBUG
  32 #ifdef _WIN32
  33
  34 #include <crtdbg.h>
  35 #define DASHER_ASSERT(expr) _ASSERT(expr)
  36
  37 #else
  38
  39 // POSIX platforms (eg Linux)
  40 #include <cassert>
  41 #define DASHER_ASSERT(expr) assert(expr)
  42
  43 #endif // _WIN32
  44
  45 #else
  46
  47 // Non-debug version (assertions disabled)
  48 #define DASHER_ASSERT(expr) ((void)true)
  49
  50 #endif // DEBUG
  51
  52 /////////////////////////////////////////////////////////////////////////////
  53
  54 // Pointer checking - some CRTs provide functionality to check the integrity of memory
  55
  56 // DASHER_ASSERT_VALIDPTR_RW(p) asserts that a pointer is valid for read and write
  57 // DASHER_ASSERT_VALIDPTR_R(p) asserts that a pointer is valid for read
  58
  59 #if _MSC_VER >= 1300
  60 #define DASHER_ASSERT_VALIDPTR_RW(p)    DASHER_ASSERT(_CrtIsValidPointer(p, sizeof(p), 1))
  61 #define DASHER_ASSERT_VALIDPTR_R(p)             DASHER_ASSERT(_CrtIsValidPointer(p, sizeof(p), 0))
  62 #else
  63
  64         // Please implement any platform-specific pointer checking
  65
  66         // Simple check that the pointer is non-null
  67 #define DASHER_ASSERT_VALIDPTR_RW(p)    DASHER_ASSERT(p!=NULL)
  68 #define DASHER_ASSERT_VALIDPTR_R(p)             DASHER_ASSERT(p!=NULL)
  69
  70 #endif
  71
  72 #endif // __assert_h__