the binary built with 4.4 and run with 4.5's libstdc++ shared library fails:
#include <tr1/regex> # include <cassert> # define VERIFY(fn) assert(fn) // Tests the value() function of the regex_traits<char> class. void test01() { bool test __attribute__((unused)) = true; std::tr1::regex_traits<char> t; VERIFY( t.value('7', 8) == 7 ); VERIFY( t.value('7', 10) == 7 ); VERIFY( t.value('7', 16) == 7 ); VERIFY( t.value('9', 8) == -1 ); VERIFY( t.value('9', 10) == 9 ); VERIFY( t.value('9', 16) == 9 ); VERIFY( t.value('d', 8) == -1 ); VERIFY( t.value('d', 10) == -1 ); VERIFY( t.value('d', 16) == 13 ); } int main() { test01(); return 0; }; FAIL: tr1/7_regular_expressions/regex_traits/char/value.cc execution test value.exe: /scratch/packages/gcc/4.4/u/gcc-4.4-4.4.4/src/libstdc++-v3/testsuite/tr1/7_regular_expressions/ regex_traits/char/value.cc:35: void test01(): Assertion `t.value('9', 8) == -1' failed. FAIL: tr1/7_regular_expressions/regex_traits/wchar_t/value.cc execution test value.exe: /scratch/packages/gcc/4.4/u/gcc-4.4-4.4.4/src/libstdc++-v3/testsuite/tr1/7_regular_expressions/ regex_traits/wchar_t/value.cc:35: void test01(): Assertion `t.value('9', 8) == -1' failed. -- Summary: [4.5/4.6 regression] regex_traits/char/value.cc built with 4.4, run with 4.5's libstdc++ fails Product: gcc Version: 4.5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: libstdc++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: doko at ubuntu dot com http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44680