doubt in EOF

[rampraveen]

while((c=getc(f in))!=EOF)..... .. any body knows what is the work of EOF here....i saw EOF value is equal to 0 and -1...but i do't know how it works here .....if anybody knows pls tell...End Of File means whether it reads the given file upto the last line of a file..pls help me........

[Banfa]

No normally EOF has a value of -1 because the characters read have values in the range 0 - 255.

This basically keeps reading characters from the file until the end of the file is reached.

It is important that c has the type int, it will not work properly if c is a char.