c++ array of pointer to string and append() method

Question

I want to have array of pointers to strings.

std::string *part [n];

I also have object witch has method that return string,

let's name it:

object1.getText();

when I want to get part of the string to array's element it's not a problem:

std::string h = object1.getText().substr(0,5) 
array[0] = &h;

but how can I append some text to existing element?

something I've tried:

std::string hh = object1.getText().substr(6) 
array[0].append(&hh);

didn't work.

Future bug: array[0] = &object1.getText().substr(0,5); the string returned by substr does not last long enough for a pointer to it to be meaningful. — user4581301
– user4581301, Commented Oct 20, 2019 at 17:25
std::string::append has no overload that accepts a pointer to a string. array[0].append(...) should be array[0]->append(...) because array [0] is a pointer. I recommend going over the section on pointer syntax in your text book again and working through some of the examples. — user4581301
– user4581301, Commented Oct 20, 2019 at 17:28

alekq · Accepted Answer · 2019-10-20 18:03:28Z

1

thank to @user4581301 , the solution is

std::string *part [n];

std::string h = object1.getText().substr(0,5) 
array[0] = &h;

std::string hh = object1.getText().substr(6);
array[0]->append(hh);

answered Oct 20, 2019 at 18:03

alekq

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