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From: Bohdan Vlasyuk <bohdan@kivc.vstu.vinnica.ua> To: gcc-gnats@gcc.gnu.org Subject: c++/3282: Problems with throw and destuctor callings Date: Wed, 20 Jun 2001 01:26:00 -0000 [thread overview] Message-ID: <200106200817.f5K8Hi205241@kivc.vstu.vinnica.ua> (raw) [-- Warning: decoded text below may be mangled, UTF-8 assumed --] [-- Attachment #1: Type: text/plain, Size: 2078 bytes --] >Number: 3282 >Category: c++ >Synopsis: Problems with throw and destuctor callings >Confidential: no >Severity: serious >Priority: medium >Responsible: unassigned >State: open >Class: wrong-code >Submitter-Id: net >Arrival-Date: Wed Jun 20 01:26:00 PDT 2001 >Closed-Date: >Last-Modified: >Originator: Bohdan Vlasyuk >Release: 3.0 >Organization: VSTU >Environment: System: Linux kivc.vstu.vinnica.ua 2.4.5 #12 ÷Ãà þà à 19 10:01:01 EEST 2001 i686 unknown Architecture: i686 host: i686-pc-linux-gnu build: i686-pc-linux-gnu target: i686-pc-linux-gnu configured with: ../srcdir/configure --enable-threads --enable-languages=c,c++ --disable-libgcj >Description: When I want to throw class, which has other class inside, and constructor copies some properties of given class -- it look like destructors are called wrond. I guess code will explain it better: -------------------------------------- #include <iostream.h> int global; class One { public: int num; One() { num=++global; cout << "One " <<num<<endl; }; void Copy(One second_one) { cout << "Copy " <<num<<endl; }; ~One() { cout << "~One "<<num<<endl; }; }; class Two { public: One my_one; Two(One one) { my_one.Copy(one); }; }; int main() { One a; try { throw Two(a); } catch (Two two) { cout << "Ok"<<endl; } return 0; } -------------------------------------- It produces following output: ( g++ _test.cpp -o test ) 11:12:39 ~/src/eval/src # ./test One 1 One 2 Copy 2 ~One 1 ~One 1 ~One 1 ~One 1 ~One 2 Ok ~One 2 ~One 2 ~One 1 You see, each destructor is called way more tnat once. P.s.: It work in a same way with 2.95.3 As a side note: 3.0's g++ appears to be MUCH MUCH slower than 2.95.3 >How-To-Repeat: Preprocessed file is ~600kb large. Just take file from the above, and compile it with g++ _test.cpp -o test >Fix: No ideas. >Release-Note: >Audit-Trail: >Unformatted:
next reply other threads:[~2001-06-20 1:26 UTC|newest] Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top 2001-06-20 1:26 Bohdan Vlasyuk [this message] 2001-06-21 2:16 Artem Khodush 2001-08-11 14:32 gdr
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