?? fig8.12
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#include "apue.h"static void charatatime(char *);intmain(void){ pid_t pid; if ((pid = fork()) < 0) { err_sys("fork error"); } else if (pid == 0) { charatatime("output from child\n"); } else { charatatime("output from parent\n"); } exit(0);}static voidcharatatime(char *str){ char *ptr; int c; setbuf(stdout, NULL); /* set unbuffered */ for (ptr = str; (c = *ptr++) != 0; ) putc(c, stdout);}
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