esysUtils/src/EsysAssert.h

// $Id$
/* 
 ******************************************************************************
 *                                                                            *
 *       COPYRIGHT  ACcESS 2004 -  All Rights Reserved                        *
 *                                                                            *
 * This software is the property of ACcESS. No part of this code              *
 * may be copied in any form or by any means without the expressed written    *
 * consent of ACcESS.  Copying, use or modification of this software          *
 * by any unauthorised person is illegal unless that person has a software    *
 * license agreement with ACcESS.                                             *
 *                                                                            *
 ******************************************************************************
*/
                                                                           
#if !defined escript_EsysAssert_20040330_H
#define escript_EsysAssert_20040330_H

/**
   \brief
   EsysAssert is a MACRO that will throw an exception if the boolean
   condition specified is false.

   Description:
   EsysAssert is conditionally compiled into code only when DOASSERT is
   defined.  When DOASSERT is not defined, the EsysAssert statement is
   entirely removed from code.
*/

//
// Note that the ANSI C Standard requires all headers to be idempotent except
// <assert.h> which is explicitly required not to be idempotent (section 4.1.2).
// This version of EsysAssert follows this requirement, consequently this
// part of the header is intentionally outside the single pass guard.
//

#undef  EsysAssert

#if defined DOASSERT

//
// DOASSERT is defined, replace EsysAssert with Exception throw
//

#include "EsysAssertException.h"
#include <sstream>

namespace esysUtils {

  class ErrStream
  {
    public:
    template <typename Tmpl>
    ErrStream& operator<<(Tmpl t)
    {
      std::stringstream str;
      str << t;
      m_msg += str.str();
      
      return *this;
    }
    
    const std::string &toString() const
    {
      return m_msg;
    }

    private:
      std::string m_msg;
  };

  inline std::ostream& operator<<(std::ostream& oStream, const ErrStream& errStream)
  {
    oStream << errStream.toString();
    return oStream;
  }

}

#define EsysAssert(AssertTest,AssertMessage) \
   (void)((AssertTest) || \
           ((esysUtils::EsysAssertException::assertFailure(#AssertTest, __DATE__, __FILE__, __LINE__, \
             (esysUtils::ErrStream()<<AssertMessage).toString())),0),0)

#else

//
// DOASSERT os not defined, replace EsysAssert with "NO-OP"
//

#define EsysAssert(AssertTest,AssertMessage) ((void)0)

#endif

#endif
1	// $Id$
2	/*
3	******************************************************************************
4	* *
5	* COPYRIGHT ACcESS 2004 - All Rights Reserved *
6	* *
7	* This software is the property of ACcESS. No part of this code *
8	* may be copied in any form or by any means without the expressed written *
9	* consent of ACcESS. Copying, use or modification of this software *
10	* by any unauthorised person is illegal unless that person has a software *
11	* license agreement with ACcESS. *
12	* *
13	******************************************************************************
14	*/
15
16	#if !defined escript_EsysAssert_20040330_H
17	#define escript_EsysAssert_20040330_H
18
19	/**
20	\brief
21	EsysAssert is a MACRO that will throw an exception if the boolean
22	condition specified is false.
23
24	Description:
25	EsysAssert is conditionally compiled into code only when DOASSERT is
26	defined. When DOASSERT is not defined, the EsysAssert statement is
27	entirely removed from code.
28	*/
29
30	//
31	// Note that the ANSI C Standard requires all headers to be idempotent except
32	// <assert.h> which is explicitly required not to be idempotent (section 4.1.2).
33	// This version of EsysAssert follows this requirement, consequently this
34	// part of the header is intentionally outside the single pass guard.
35	//
36
37	#undef EsysAssert
38
39	#if defined DOASSERT
40
41	//
42	// DOASSERT is defined, replace EsysAssert with Exception throw
43	//
44
45	#include "EsysAssertException.h"
46	#include <sstream>
47
48	namespace esysUtils {
49
50	class ErrStream
51	{
52	public:
53	template <typename Tmpl>
54	ErrStream& operator<<(Tmpl t)
55	{
56	std::stringstream str;
57	str << t;
58	m_msg += str.str();
59
60	return *this;
61	}
62
63	const std::string &toString() const
64	{
65	return m_msg;
66	}
67
68	private:
69	std::string m_msg;
70	};
71
72	inline std::ostream& operator<<(std::ostream& oStream, const ErrStream& errStream)
73	{
74	oStream << errStream.toString();
75	return oStream;
76	}
77
78	}
79
80	#define EsysAssert(AssertTest,AssertMessage) \
81	(void)((AssertTest) \|\| \
82	((esysUtils::EsysAssertException::assertFailure(#AssertTest, __DATE__, __FILE__, __LINE__, \
83	(esysUtils::ErrStream()<<AssertMessage).toString())),0),0)
84
85	#else
86
87	//
88	// DOASSERT os not defined, replace EsysAssert with "NO-OP"
89	//
90
91	#define EsysAssert(AssertTest,AssertMessage) ((void)0)
92
93	#endif
94
95	#endif
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