“assignment discards 'const' qualifier” error on non-const pointer

Question

In the following function:

char *mystrtok(const char *input, const char *delim,char *rest) {
    int i;
    for (i = 0; input[i] != *delim && input[i         


        

Answer 1

change the prototype to

char *mystrtok(const char *input, const char *delim, const char *rest);