Reading From Input File A Float And A Char

[Bill]

ok i need to somehow read from an input file, so if its a number it stores
the number or if its a char it stores the char

[Danny Kalev]

you can find examples here:
http://gethelp.devx.com/techtips/cpp_pro/10min/2001/june/10min0601.asp
Danny

Bill wrote:
>
> ok i need to somehow read from an input file, so if its a number it stores
> the number or if its a char it stores the char

[James Curran]

First of all, we need to know what you mean by "a number". Is it in ASCII
or binary? (e.g. 1234 is "31 32 33 34" in ASCII but "04 D2" as an integer
in binary, and something else entirely as a float in binary) . I'm gonna
guess that all input is in ascii, because it's easier to describe.

First read a block of the file as characters. Look at the first few
characters. Decide, by some means which must be unique to your particular
program, if those characters are numbers or not. If they are numbers,
convert the character to numbers using atoi() or atof().

You'll note that I skipped over the part that you most wanted to know about,
but that's the part I really can't help you there. Only you know what's in
those files, and what they mean. Say, for example, you had a file of
business names and their revenues. If you saw "Micr", you'd say, those are
characters, so this must be a character string (say "Microsoft"). On the
other hand, you might see the character "1800" and those are numbers so this
must be a number ---- except to could be the company "1800-Flowers" which
means to should be read as a character string.

--
Truth,
James Curran
www.NJTheater.com (Professional)
www.NovelTheory.com (Personal)
www.BrandsForLess.Com (Day Job)


"Bill" <snugglebud@adelphia.net> wrote in message
news:3be46833$1@147.208.176.211...
>
> ok i need to somehow read from an input file, so if its a number it stores
> the number or if its a char it stores the char