stdio.h

功能强大的小型 c 编译器,适合学习编译原理,操作系统

/*
** STDIO.H -- Standard Small C Definitions.
*/
#define stdin    0  /* file descriptor for standard input file */
#define stdout   1  /* file descriptor for standard output file */
#define stderr   2  /* file descriptor for standard error file */
#define stdaux   3  /* file descriptor for standard auxiliary port */
#define stdprn   4  /* file descriptor for standard printer */
#define FILE  char  /* supports "FILE *fp;" declarations */
#define ERR   (-2)  /* return value for errors */
#define EOF   (-1)  /* return value for end-of-file */
#define YES      1  /* true */
#define NO       0  /* false */
#define NULL     0  /* zero */
#define CR      13  /* ASCII carriage return */
#define LF      10  /* ASCII line feed */
#define BELL     7  /* ASCII bell */
#define SPACE  ' '  /* ASCII space */
#define NEWLINE LF  /* Small C newline character */