while Example

Example

      #include <stdio.h>

      int main()
      {
        char c;

        while ( c = getc (stdin), c != EOF )
        { printf (" '%c' = %d\n", c, c);
        }
        return (0);
      }

• reads characters from terminal until end-of-file

• <control>-d is end-of-file for UNIX

• separate expressions with commas in while clause

• value of last expression is used