Stop Vector Stack trace

Hi, $ apl -q set the stop vector for long running / large data volume functions when a particular situation is met. Here grossly simplified ... ∇x [1] ⍎1/'S∆x←stopper' [2] stopper: [3] S∆x←⍳0∇  x x[2]  →2 Symbol is: 'stopper' at Symbol.cc:404 *** useless apl.lines (no CXXFLAGS=-rd

Stack trace QuadCR space

Hi, )clear CLEAR WS  ⎕CR ' ' == Assertion failed: size() in Function:  back in file:  UCS_string.hh:322 C/C++ call stack: -- Stack trace at Assert.cc:75 --