/[escript]/branches/windows_from_1456_trunk_1580_merged_in/esysUtils/src/EsysAssert.h
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Revision 1581 - (show annotations)
Wed Jun 4 07:10:43 2008 UTC (12 years, 4 months ago) by phornby
File MIME type: text/plain
File size: 2288 byte(s)
Prepare for merging the latest trunk changes onto the windows branch.


1
2 /* $Id$ */
3
4 /*******************************************************
5 *
6 * Copyright 2003-2007 by ACceSS MNRF
7 * Copyright 2007 by University of Queensland
8 *
9 * http://esscc.uq.edu.au
10 * Primary Business: Queensland, Australia
11 * Licensed under the Open Software License version 3.0
12 * http://www.opensource.org/licenses/osl-3.0.php
13 *
14 *******************************************************/
15
16 #if !defined escript_EsysAssert_20040330_H
17 #define escript_EsysAssert_20040330_H
18 #include "system_dep.h"
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 inline
64 const std::string &toString() const
65 {
66 return m_msg;
67 }
68
69 private:
70 std::string m_msg;
71 };
72
73 inline
74 inline std::ostream& operator<<(std::ostream& oStream,
75 const ErrStream& errStream)
76 {
77 oStream << errStream.toString();
78 return oStream;
79 }
80
81 }
82
83 #define EsysAssert(AssertTest,AssertMessage) \
84 (void)((AssertTest) || \
85 ((esysUtils::EsysAssertException::assertFailure(#AssertTest, __DATE__, __FILE__, __LINE__, \
86 (esysUtils::ErrStream()<<AssertMessage).toString())),0),0)
87
88 #else
89
90 //
91 // DOASSERT os not defined, replace EsysAssert with "NO-OP"
92 //
93
94 #define EsysAssert(AssertTest,AssertMessage) ((void)0)
95
96 #endif
97
98 #endif

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