CODEWITHSUNDEEP
c++arraysstringpointers
Idaisa
Idaisa

Reputation: 19

How to get the character at certain index of a string using pointers?

I'm trying to make a function which performs some operations on strings. From my understanding, strings are character arrays. So by writing:

cout << name[0];

we print the first character written of an assumed string called 'name'.

In my function, I have to use pointers to perform all functions. My current approach is to make a pointer:

string *str=&name;

but when I try to print the character at specified index by writing:

cout << *str[0];

It doesn't compile, I'm not sure what is the problem. One solution would be to make a dynamic character array but I wanted to know if it is possible to get the character at certain indexes of strings using pointers?

Upvotes: 0

Views: 2474

Answers (1)

songyuanyao
songyuanyao

Reputation: 173044

operator[] has higher precedence than operator*, so *str[0] is same as *(str[0]). str[0] returns a std::string, and calling operator* on std::string doesn't make sense.

Change it to (*str)[0].

Upvotes: 4

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