//----------------------------------------------------------------------------
//  Assertions
//----------------------------------------------------------------------------
//
//  Oblige Level Maker (C) 2006,2007 Andrew Apted
//
//  This program is free software; you can redistribute it and/or
//  modify it under the terms of the GNU General Public License
//  as published by the Free Software Foundation; either version 2
//  of the License, or (at your option) any later version.
//
//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//----------------------------------------------------------------------------

#ifndef __SYS_ASSERT__
#define __SYS_ASSERT__

class assert_fail_c
{
public:
  assert_fail_c(const char *_msg);
  assert_fail_c(const assert_fail_c &other);
  ~assert_fail_c();
  
private:
  static const int MSG_MAX = 200;

  char message[MSG_MAX];

public:
  const char* GetMessage() const { return message; }

  assert_fail_c& operator=(const assert_fail_c &other);
};

// -------- the macros --------

#ifdef NDEBUG
#define SYS_ASSERT(cond)  ((void) 0)

#elif defined(__GNUC__)
#define SYS_ASSERT(cond)  ((cond) ? (void)0 :  \
        AssertFail("Assertion (%s) failed\nIn function %s (%s:%d)\n", #cond , __func__, __FILE__, __LINE__))

#else
#define SYS_ASSERT(cond)  ((cond) ? (void)0 :  \
        AssertFail("Assertion (%s) failed\nIn file %s:%d\n", #cond , __FILE__, __LINE__))

#endif  // NDEBUG

#ifdef NDEBUG
#define SYS_ASSERT_MSG(cond, arglist)  ((void) 0)
#else
#define SYS_ASSERT_MSG(cond, arglist)  ((cond) ? (void)0 :  \
        AssertFail arglist )
#endif

#define SYS_NULL_CHECK(ptr)    SYS_ASSERT((ptr) != NULL)
#define SYS_ZERO_CHECK(value)  SYS_ASSERT((value) != 0)

// -------- the support code -------- 

void AssertFail(const char *msg, ...);
// throw an assertion exception with the given message.

#endif  /* __SYS_ASSERT__ */
