c++ - Restrict string length to be in specific range -


this problems seems common issue, yet unable find solution it. , i'm convinced functionality should part of boost or other popular library.

i want have drop-in replacement std::string specify minimal , maximal length, preferably @ compile time. optionally, support state no string set (in boost::optional way). this:

ranged_string<min, max> str;

when assigning invalid value, exception should thrown.

creating such utility myself shouldn't hard (just overloads , exception throws), don't want reinvent wheel.

it may best bet extend (or wrap) string , overload (or protect via wrapping) of operations detract or add string bounds checking. curious though, of use range-enforced string be?

edit: wouldn't @ compile time though.


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