Initialization discards qualifiers from pointer target type

Question

I\'m trying to print the list of a singly linked list that I referred to in link text. It works, but I do get the compiler warnings:

Initializat

Answer 1

In following function, would get the warning that you encountered with.

void test(const char *str) {
  char *s = str;
}

There are 3 choices:

1. Remove the const modifier of param:

   void test(char *str) {
     char *s = str;
   }
   

2. Declare the target variable also as const:

   void test(const char *str) {
     const char *s = str;
   }
   

3. Use a type convert:

   void test(const char *str) {
     char *s = (char *)str;
   }