Can I use string instead of char?
1 Answer. A std::string (or any other dynamic sized container) contains a pointer to its character data that is stored elsewhere in memory. If you were to read() / write() the std::string itself as-is, you would only be reading/writing the pointer value, not the actual character data.
Can we assign string to char pointer?
You can assign to a pointer, but you can’t assign to an array. A special exception is made for initialization of char arrays with string literals. String literals (such as “Hello”) have type char[N] where N is number of characters (including the terminating ‘\0’ ).
What’s difference between char’s [] and char * s in C?
Difference between char s[] and char *s in C The s[] is an array, but *s is a pointer. And the most important difference is that, we cannot edit the pointer type string. So this is read-only. But we can edit array representation of the string.
Can a string be a character?
String is zero or more characters. char is a primitive type. String is a class. A character constant has an equivalent integer value, whereas a single-character string constant does not have an equivalent integer value.
Can I modify string in C?
According to the C Standard, 6.4. String literals are usually referred to by a pointer to (or array of) characters. Ideally, they should be assigned only to pointers to (or arrays of) const char or const wchar_t .
Why do you put characters in a char?
You’re not putting characters into the char*. You’re creating an array of characters in a part of memory determined by your compiler, and pointing the char* at the first character of that array. The array is actually const, so you shouldn’t be able to assign it to a non-const pointer.
How to re-assign a character string to an existing char array?
After the initial assignment, to reassign C style string you have to copy the characters to the array one element at a time. The thing to remember about this type of string is that it isn’t a special type, it is literally just an array of characters.
Can a string variable hold more than one character?
If you intended to print out abcdefghijklmnopqrstuvwxy, then you should have stored it into a string variable instead of a char one (char ch [50] = char abcdefghijklmnopqrstuvwxy;). String variables can hold more than one character, where as a char variable is for holding one character.
Can a char literal contain more than one C-char?
An ordinary character literal that contains more than one c-char is a multicharacter literal . A multicharacter literal has type int and implementation-defined value. An integer character constant has type int.