author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 02 Feb 2010 02:01:42 +0200 | |
changeset 0 | e4d67989cc36 |
permissions | -rw-r--r-- |
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/* |
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* The conversation with Matti Rintala on STLport forum 2005-08-24: |
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* |
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* Do you mean ISO/IEC 14882 3.6.3 [basic.start.term]? |
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* |
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* Yes. "Destructors (12.4) for initialized objects of static storage duration |
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* (declared at block scope or at namespace scope) are called as a result |
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* of returning from main and as a result of calling exit (18.3). These objects |
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* are destroyed in the reverse order of the completion of their constructor |
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* or of the completion of their dynamic initialization." |
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* |
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* I found a confirmation on the web that gcc may not strictly conform |
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* to this behaviour in certains cases unless -fuse-cxa-atexit is used. |
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* |
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* Test below give (without -fuse-cxa-atexit) |
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|
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Init::Init() |
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Init::use_it |
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It ctor done <-- 0 |
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Init::use_it done |
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Init ctor done <-- 1 |
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Init2 ctor done <-- 2 |
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It dtor done <-- 0 |
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Init2 dtor done <-- 2 |
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Init dtor done <-- 1 |
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|
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* but should: |
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|
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Init::Init() |
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Init::use_it |
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It ctor done <-- 0 |
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Init::use_it done |
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Init ctor done <-- 1 |
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Init2 ctor done <-- 2 |
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Init2 dtor done <-- 2 |
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Init dtor done <-- 1 |
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It dtor done <-- 0 |
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*/ |
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#include <stdio.h> |
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using namespace std; |
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class Init |
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{ |
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public: |
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Init(); |
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~Init(); |
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static void use_it(); |
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}; |
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class Init2 |
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{ |
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public: |
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Init2(); |
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~Init2(); |
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}; |
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static Init init; |
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static Init2 init2; |
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class It |
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{ |
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public: |
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It(); |
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~It(); |
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}; |
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Init::Init() |
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{ |
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printf( "Init::Init()\n" ); |
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use_it(); |
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printf( "Init ctor done\n" ); |
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} |
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Init::~Init() |
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{ |
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printf( "Init dtor done\n" ); |
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} |
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void Init::use_it() |
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{ |
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printf( "Init::use_it\n" ); |
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static It it; |
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printf( "Init::use_it done\n" ); |
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} |
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Init2::Init2() |
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{ |
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printf( "Init2 ctor done\n" ); |
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} |
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Init2::~Init2() |
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{ |
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printf( "Init2 dtor done\n" ); |
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} |
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It::It() |
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{ |
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printf( "It ctor done\n" ); |
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} |
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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It::~It() |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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110 |
{ |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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111 |
printf( "It dtor done\n" ); |
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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112 |
} |
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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113 |
|
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Revision: 201002
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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114 |
int main() |
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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115 |
{ |
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return 0; |
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
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117 |
} |