C++ Array Problem

#include <iostream>
using namespace std;
int main()
{
char* test = new char[5];
test[0] = 'h';
test[1] = 'e';
test[2] = 'l';
test[3] = 'l';
test[4] = 'o';
cout << test << " : " << strlen(test) << " : " << _msize(test) << endl;
int a;
cin >> a;
return 0;
}

Why is this outputting : helloýýýý««««««««þîþîþîþ : 24 : 5

I could understand the first 5 characters being random chars since they hadn't been initialized, but why are there an extra 19 characters added onto this array? strlen(test) gives 24, while _msize(test) does tell me how big it's supposed to be.

You forgot to add a '\0' (nul) char at the end of your string.

Code:

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...
char* test = new char[6];
...
test[5] = '\0';
cout << ...

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:-)

You are a genious. Thank you so much.

Quote:

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Originally Posted by gambitsunob

_msize(test) does tell me how big it's supposed to be.

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Don't rely on that.