var chX : CHAR does not like value '' ?

[Elmug]

Dear forum people,

I declared a var of the type Char, named chX, for instance.

In a statement chX := ''   , where '' is nothing in between the two single quotes, I get error message.

But if I only change '' to ' ' (a space between the two single quotes) all compiles and runs fine.

I wonder what is going on that I am missing?

Thanks.

[Martin_fr]

A string can be empty, but a char can not be empty.

You can but a chr(0)   in there, that is still a char.

[Elmug]

Thanks dear Martin,

I was under the wrong impression that '' (nothing between two quotes) WAS the null character Chr(0), since I use the '' all the time for strings.

An empty pair of quotes means "empty string". What an eye-opener!