How do you truncate a file?

[Lance Bledsoe]

In article <f25g_zd at rpi.edu> fitz at mml0.meche.rpi.edu (Brian Fitzgerald) writes:
>Rudi Cilibrasi writes:
>>Suppose I have a 100-byte file called "myfile.dat", and I want to get
>>rid of the last 10 bytes.
>
>#include <stdio.h>
>main () {
>int	i;
>for (i=0; i < 90 ; i++) {
>		(void) putchar(getchar());

Do you think you could have thought of a *slower* way to do this???



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