// Test StrCharPtrAt function
    bool test_str_char_ptr_at(void) {
    WriteFmt("Testing StrCharPtrAt\n");
    
    Str s = StrInitFromZstr("Hello");

    // Access character pointers at different indices
    // Now using the fixed StrCharPtrAt macro
    char *p0 = StrCharPtrAt(&s, 0);
    char *p1 = StrCharPtrAt(&s, 1);
    char *p2 = StrCharPtrAt(&s, 2);

    // Now using the fixed StrCharPtrAt macro
    char *p0 = StrCharPtrAt(&s, 0);
    char *p1 = StrCharPtrAt(&s, 1);
    char *p2 = StrCharPtrAt(&s, 2);
    char *p3 = StrCharPtrAt(&s, 3);

    char *p0 = StrCharPtrAt(&s, 0);
    char *p1 = StrCharPtrAt(&s, 1);
    char *p2 = StrCharPtrAt(&s, 2);
    char *p3 = StrCharPtrAt(&s, 3);
    char *p4 = StrCharPtrAt(&s, 4);

    char *p1 = StrCharPtrAt(&s, 1);
    char *p2 = StrCharPtrAt(&s, 2);
    char *p3 = StrCharPtrAt(&s, 3);
    char *p4 = StrCharPtrAt(&s, 4);

    char *p2 = StrCharPtrAt(&s, 2);
    char *p3 = StrCharPtrAt(&s, 3);
    char *p4 = StrCharPtrAt(&s, 4);
    
    // Check that the pointers are correct

    if (VecLen(str) > 0 && *offset + 2 <= size) {
    size_t idx = extract_u16(data, offset, size) % VecLen(str);
    char  *ptr = StrCharPtrAt(str, idx);
    (void)ptr; // Suppress unused variable warning
    }