C++ array size dependent on function parameter causes compile errors

Question

I have a simple function in which an array is declared with size depending on the parameter which is int.

    void f(int n){
        char a[n];
    };

    i         


        

Answer 1

Would it be reasonable to use a vector<> rather than an array? Or, since you're replacing a char *, a std::string? Those do work well with runtime sizing, although there may be other reasons not to use them.