Comparing string pointer with other pointer

Question

i am comparing string pointer with other pointer but string pointer gives error while writing this code

i tried printing element using string pointer but actually gets error

int main()
{
   string s="abcde";
   string *sh=&s;
   cout<<sh[2]<<" "<<s[2]<<endl;
}


RESULT -ERROR

Please update your question to provide a minimal reproducible example. The code in your question will not compile because it doesn't #include any headers, so string and cout are undefined. I can guess that string is std::string, but it's not clear. Also, you didn't show us the error message. I'll add a "c++" (always include a tag specifying the language you're using). Finally, "CPP" refers to the C Preprocessor; the language is "C++". — Keith Thompson
– Keith Thompson, Commented Nov 3, 2022 at 16:33
Oh, and your title refers to comparing string pointers, but there are no comparisons in your code. — Keith Thompson
– Keith Thompson, Commented Nov 3, 2022 at 16:34
What's the benefit of comparing pointers? What are you trying to achieve? — Thomas Matthews
– Thomas Matthews, Commented Nov 3, 2022 at 17:00
Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. — Drashti Kheni
– Drashti Kheni, Commented Nov 4, 2022 at 4:34

Edgar Gadbem · Accepted Answer · 2022-11-03 15:41:58Z

2

The sh variable in your code is a pointer of strings, not chars as the string content. It does not mean the same thing as s[2] because s is a string the [] operator will access its third element. When you access sh[2] you are accessing the third string address from the start of the "array of strings" represented by sh as a pointer. As you don't have this kind of data this access is invalid.

answered Nov 3, 2022 at 15:41

Edgar Gadbem

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