http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51540
Bug #: 51540 Summary: partial_sum (int *, int *, int *, multiplies < int >) does not use operator +(complex, complex) Classification: Unclassified Product: gcc Version: 4.5.1 URL: http://gcc.gnu.org/onlinedocs/libstdc++/latest-doxygen /a01567.html#a17bad49fa9fb1c5c41d019b16970fe9e Status: UNCONFIRMED Severity: major Priority: P3 Component: libstdc++ AssignedTo: unassig...@gcc.gnu.org ReportedBy: giecr...@stegny.2a.pl Host: i586-suse-linux Target: i586-suse-linux Build: i586-suse-linux The following code fails to run: int main () { int x [02] = { 0, 01 }; ::std ::partial_sum (x, x + 02, x, ::std ::multiplies < int > ()); assert (+x [01] == 01); return +EXIT_SUCCESS; } Actual result: int main(): Assertion `+x [01] == 01' failed. Expected result: I do not know, as the documentation does not say which complex class should be used. Maybe it should not compile at all.