http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46056
Summary: range-based for loop inside lambda crashes if
_GLIBCXX_DEBUG is defined
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: alser...@inbox.ru
Target: i686-pc-linux-gnu
The following test crashes once compiled by
g++ (GCC) 4.6.0 20101017 (experimental) on i686-pc-linux-gnu
// Test for range-based for loop inside lambda
// { dg-options "-std=c++0x" }
// { dg-do run }
#define _GLIBCXX_DEBUG
#include <iostream>
#include <vector>
int main(){
std::vector<int> v(1);
[&]() { for(auto i: v); }();
}
Apparently it crashes during safe sequence destruction once main is finished.
It does work (i.e., does not crash) without any one of _GLIBCXX_DEBUG, lambda,
or range-based for. Also, it does not crash if optimization is on (e.g., with
-O).
