Hacker News Reader

Also, it did still catch a problem in the second scenario, it just didn't conveniently point to the right line. +1 on _GLIBXCXX_{ASSERTION,DEBUG}.

According to https://gcc.gnu.org/onlinedocs/libstdc++/manual/debug_mode_u... there's a D_GLIBCXX_DEBUG_BACKTRACE that will show a backtrace for the line number too