what is the difference between null terminated string and string

[brian]

what is the difference between null terminated string and string.

some parameters of a function are defined to be null terminated strings
and some just string. what's the difference ?

[Jens Knoell]

Strings are just characters chained together, not necessarily with a defined
length. You could, for example, also hold picture data in a string. A null
terminated string has a special "end of string" delimiter - as the name
implies, its the \0 character. Thus you can't hold data in a null terminated
string which has in itself a null character.

Jens

"brian" <brian_...@yahoo.com> schrieb im Newsbeitrag
news:a74ee6e1.01071...@posting.google.com...

[Norman Bullen]

A NUL terminated string has an ASCII or Unicode NUL character after the
last character of text. A NUL is a char (ASCII) equal to '\0' or an int
(Unicode) equal to 0.

An string that is not specified to be NUL terminated does not need to
have a NUL character at the end of it; some other mechanism will be used
to determine the length of the string.

The only case I can think of off hand where Windows uses a string that
does NOT need to be NUL terminated is the TextOut() function. In other
cases you should assume that a NUL terminator is required.

Norm

[Norman Bullen]

Norman Bullen wrote:
>
> brian wrote:
> >
> > what is the difference between null terminated string and string.
> >
> > some parameters of a function are defined to be null terminated strings
> > and some just string. what's the difference ?
>
> A NUL terminated string has an ASCII or Unicode NUL character after the
> last character of text. A NUL is a char (ASCII) equal to '\0' or an int
> (Unicode) equal to 0.

I should have said short int above.