int main()
    {
        int* p;
        p = (int*)wrapped_malloc(sizeof(int));
        *p = 10;
        return 0;
    }
    
    void *wrapped_malloc(int size) {
        return malloc(size);
    }

    test.c:9:11: error: conflicting types for 'wrapped_malloc'
        void *wrapped_malloc(int size) {
              ^
    test.c:4:19: note: previous implicit declaration is here
            p = (int*)wrapped_malloc(sizeof(int));