Vector[ ] range check: Tautological compare

[TamaMcGlinn]

If I include std_lib_facilities.h, I get:

$ clang++ FirstStepsInCPP.cpp -std=c++14
In file included from FirstStepsInCPP.cpp:4:
./book_headers/std_lib_facilities.h:107:8: warning: comparison of unsigned expression < 0 is always false [-Wtautological-compare]
                if (i<0||size()<=i) throw Range_error(i);
                    ~^~
./book_headers/std_lib_facilities.h:113:8: warning: comparison of unsigned expression < 0 is always false [-Wtautological-compare]
                if (i<0||size()<=i) throw Range_error(i);
                    ~^~
2 warnings generated.

Which is absolutely true; i is an unsigned int so why bother checking for negative values?

[TamaMcGlinn]

I see this is solved by pullrequest #8