How are string literals represented and implemented in C++?

Answer 1

According to the standard:

"An ordinary string literal has type "array of n const char" and static storage duration."

i.e. const char*

IIRC, string literals are usually stored in read-only memory. What you get when you create a string literal in a program, is a constant character pointer which points to the first character of the string.

"helloworld", for example, would be stored contiguously in read-only memory as

'h' 'e' 'l' 'l' 'o' 'w' 'o' 'r' 'l' 'd' '\0'

A constant character pointer which points to the character 'h' is returned. The string is null-terminated (the end of the string is signified by the presence of the '\0' character at the end of the contiguous blocks.

Answer 2

string literals are long sequence of letters which are enclosed by double quote ( "") .

Ex- " Hi I am James " ;

all string literals are terminated by an escape sequence ' \0 ' (NULL) that's why the length of the string is 1 more than the letter it consists .

string a = " Hi I am James " ;
cout << a << endl;

// Hi I am James

Answer 3

They are C-style strings (null-terminated).

Answer 4

Null termination also happens in c++ ( string )

they are literally added by \0 at the end