Text file manipulation problem

The following code inserts “~” in a text file. However when it reads and finds a ½, ¼, £ and o (degrees),the program halts.

Any ideas ?

#include <stdio.h>

main()
{
/* char buffer [ BUFSIZ ]; */

char ch;

while ( (ch = getchar()) >= 0 )
{
putchar ( ch );
if ( ch == 10 )
puts ( "~" );
}
}

Quote:

---

Originally posted by ferretman
puts ( "~" );

---

So you want it to write out the chars '~' followed by '\0'?

Question-ing,
Joshua Burkholder

Hi!

The special characters ½, ¼, £ and o(degrees) are extended ASCII characters. i.e., their value is not in the range [0,127].
The extended ASCII table is in the range [128,255] if you use unsigned char, but they are in the range [-128,-1] if you use unsigned char's. Your compiler is using signed char's by default, so the program stops as soon as a special character is found...

alex

I am using the CC compiler that ships with HP UX 10 !!