问题
How do I enable bound checking for operator[]
and iterators?
回答1:
You can activate runtime iterator and bounds checking by compiling with -D_GLIBCXX_DEBUG
. Also note that random-access containers provide the always bounds-checking at()
-operation in addition to operator []
.
References:
GCC STL debug mode: http://gcc.gnu.org/onlinedocs/libstdc++/manual/debug_mode_using.html#debug_mode.using.mode
at() operation: std::vector::at(), std::deque::at() and std::array::at()
回答2:
you should overload the operator[]
for your specific classes. If you want to use an existing STL container, the at()
function is a bounds-checked version of the operator[].
来源:https://stackoverflow.com/questions/5594686/gcc-stl-bound-checking