C++ Challenge Strings

Question

I completed several challenges within the last
days and I failed to understand the question inn the picture totally.

Can someone help me out and explain why there is this output of 2 letters???

-------
char *prt;
string Str = "abcdefg";
prt = Str;
prt += 5;
cout << prt:
-------

Output fg

I'm totally confused!

Thanks mates

Answer 1

Strings are just char pointers (or arrays).
prt = Str means prt holds a pointer to the first character in Str.
And that means if you increment it by 5, it goes to the 5th element of Str

Answer 2

Henry char* is array and prints everything hold by that array...

as pointer shifted to fifth element, it point from fifth location and prints whatever is contained (have char* as 10 letter and you will observe last five characters)

Answer 3

Because if you want to print a string, cout prints the current character and the characters after it until it reaches a null termination character '\0'. By default, any string that is defined with double quotes (") has a default null termination character in the end.

Answer 4

the string stored is like thi:-{a,b,c,d,e,f,g,'/0'}
Now....when you inc the value of prt by 5, u are actually increasing the stored address by five ....which makes prt go on 6th element(1+5=6) i.e. f

Now....when printing a string...it prints upto null char...so it print f...then g....then stops on null char

Answer 5

ok so far...

and why is there a second output also?

Answer 6

Thanks a lot guys. That really helped me!