diff options
author | YamaArashi <shadow962@live.com> | 2016-01-06 01:47:28 -0800 |
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committer | YamaArashi <shadow962@live.com> | 2016-01-06 01:47:28 -0800 |
commit | be8b04496302184c6e8f04d6179f9c3afc50aeb6 (patch) | |
tree | 726e2468c0c07add773c0dbd86ab6386844259ae /gcc/testsuite/g++.old-deja/g++.other/singleton.C |
initial commit
Diffstat (limited to 'gcc/testsuite/g++.old-deja/g++.other/singleton.C')
-rwxr-xr-x | gcc/testsuite/g++.old-deja/g++.other/singleton.C | 38 |
1 files changed, 38 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 100755 index 0000000..075d83a --- /dev/null +++ b/gcc/testsuite/g++.old-deja/g++.other/singleton.C @@ -0,0 +1,38 @@ +// 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 non-zero 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 (...) { } + } +} + |