测试自动代码生成过程的重定向

#include <stdio.h>
#include <string.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdarg.h>
#include <stdint.h>
#include <string.h>
#include <errno.h>
#include <ctype.h>
#include <expat.h>
#include <getopt.h>
#include <limits.h>
#include <unistd.h>

#define WL_PRINTF(x, y) __attribute__((__format__(__printf__, x, y)))

int main(int argc ,char *argv[])
{
    FILE *stream;
    const char *str;

    if ((stream = freopen(argv[1], "w", stdout)) == NULL)
        exit(-1);
    printf("#include <stdio.h>\n"); 
    printf("\t\tthis is stdout console change\n");
    printf("\t\tthis is stdout change to tty\n");
    printf("\t\tthis is stdout change to tty123\n");
    stream = freopen("/dev/tty","w",stdout);
    /*stdout是向程序的控制台重定向*/
    printf("And now back to the console once again\n");
   
    return 0;

}