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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/g++.old-deja/g++.other/singleton.C | |
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Diffstat (limited to 'gcc/testsuite/g++.old-deja/g++.other/singleton.C')
-rw-r--r-- | gcc/testsuite/g++.old-deja/g++.other/singleton.C | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.old-deja/g++.other/singleton.C b/gcc/testsuite/g++.old-deja/g++.other/singleton.C new file mode 100644 index 000000000..2a27ca3cd --- /dev/null +++ b/gcc/testsuite/g++.old-deja/g++.other/singleton.C @@ -0,0 +1,39 @@ +// { dg-do run } +// This tests two things: +// 1. there is an annoying warning. +// singleton.C:26: warning: `class singleton' only defines private constructors and has no friends +// egcs fails to see that there is a public static accessor function. +// 2. the program crashes, because apparently the static variable s in +// singleton::instance() is considered constructed although the ctor +// exited via an exception. (crash changed to nonzero return here) + +class singleton { +public: + static singleton& instance() { + static singleton s; + return s; + } + int check() {return initialized;} + +private: + singleton() : initialized(1) { + if ( counter++ == 0 ) throw "just for the heck of it"; + initialized = 2; + } + singleton( const singleton& rhs ); + void operator=( const singleton& rhs ); + int initialized; + static int counter; +}; + +int singleton::counter; + +int main() +{ + while (1) { + try { + return singleton::instance().check()-2; + } catch (...) { } + } +} + |