gsl-shell.git - gsl-shell

better C++/lua error handling in agg-parse-trans.cpp and lua-plot.cpp

Design change: now C++ never call lua_error directly but can throw an exception or return a value that indicate a failure in operation. This kind of function should use also auto_ptr and stack-allocated (automatic) object instance to ensure the deallocation of memory and strong exception safety. The lua_error can be allocated only by C-style function that does not need proper stack unwinding (no auto-ptr neither automatic allocated object). The rationale is that lua_error use setjmp/longjmp that will bypass C++ stack unwinding.

Diffstat (limited to 'agg-plot/lua-plot.cpp')

1 files changed, 18 insertions, 7 deletions