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raj
Hi friends,

In an interview I was asked to write a C program to create a large file
of 8GB

The first 4GB is filled with "Hello"

and the secod 4GB is filled with "World"

Sorry to say that I don't know how to do that in an elegant way. I think
it is a trick question depending on if size_t is 32 bits or 64 bits.

Does anybody know how?

Thanks for answering!

Dec 16 '07
12 1604
In article <__************ *************** ***@bt.com>,
Malcolm McLean <re*******@btin ternet.comwrote :
>
"Ian Collins" <ia******@hotma il.comwrote in message
>Malcolm McLean wrote:
>>A long will give you 2G of space.

Says who?
ANSI / ISO/
Perhaps you meant "at least" in your original statement.
The C standards permit larger long.
--
So you found your solution
What will be your last contribution?
-- Supertramp (Fool's Overture)
Dec 17 '07 #11
On Sun, 16 Dec 2007 23:12:57 -0800 (PST), Paul Hsieh wrote:
if (fp) {
if (0 == write4GB (hello, fp) && 0 == write4GB (world, fp))
ret = EXIT_SUCCESS;
fclose (fp);
}
return ret;
Ignoring the return value of fclose (fp) means that some error
conditons are reported as success.
--
Roland Pibinger
"The best software is simple, elegant, and full of drama" - Grady Booch
Dec 17 '07 #12
Ben Pfaff wrote:
Tor Rustad <to********@hot mail.comwrites:
> for (i=0; i<4*1024; i++)
for (j=0; j<1024; j++)
for (k=0; k<1024; k++)
fprintf(out, "%c", "Hello"[k%5]);

1024 is not evenly divisible by 5, so this will lead to a uneven
5 isn't a factor in 2^64 either. :)
boundary between the end of one kilobyte of output and the start
of the next.
Yup, which was the reason I didn't print the whole word on each
fprintf() call.

--
Tor <bw****@wvtqvm. vw | tr i-za-h a-z>
Dec 18 '07 #13

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