stdio.h

数字转换的六个功能模块

/*
** STDIO.H -- Standard Small-C Definitions
**
** Copyright 1983  L. E. Payne and J. E. Hendrix
*/
#define stdin    0
#define stdout   1
#define stderr   2
#define ERR   (-2)
#define EOF   (-1)
#define YES      1
#define NO       0
#define NULL     0
#define CR      13
#define LF      10
#define BELL     7
#define SPACE  ' '
#define NEWLINE LF