listchars.c

来自「unix linux 编程实践源代码」· C语言 代码 · 共 17 行

/*  listchars.c
 *      purpose: list individually all the chars seen on input
 *       output: char and ascii code, one pair per line
 *        input: stdin, until the letter Q
 *        notes: usesful to show that buffering/editing exists
 */

#include        <stdio.h>

main()
{
        int     c, n = 0;

        while( ( c = getchar()) != 'Q' )
                printf("char %3d is %c code %d\n", n++, c, c );
}