GCC STL bound checking

Question

如何为operator[]和迭代器启用绑定检查？

Answer 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()

Answer 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[].