Logan Shaw wrote:
Nigel Grant wrote:
[NG] I cant break up the line by replacing "|" with a "0", I need to
put both of the seperated fields into a structure & this cannot have
"0" at the end of either field.
All strings in C always end with a zero.
Oh, I need to clarify one thing, because I think I just understood
your confusion.
The following two statements are NOT equivalent:
string[5] = 0;
string[5] = '0';
The first one writes the integer 0 into the string at position #5.
The second writes the character '0' into the string at position #5.
The character zero, if you are on a computer that uses ASCII, is
the integer 48.
So, when you type this:
string[5] = '0';
if the compiler is creating code for a machine that uses ASCII, then
in effect the compiler translates your statement into this:
string[5] = 48;
So, when you put 0 at the end of a string, you aren't putting the
character '0'. You are putting the character NUL (ASCII code 0).
(Confusingly, ASCII NUL is not the same as C's NULL pointer value.)
Hope that helps.
- Logan
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