📄 readline.h
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typedef struct { int read_fd; /* caller's descriptor to read from */ char *read_ptr; /* caller's buffer to read into */ size_t read_maxlen; /* max #bytes to read */ /* next three are used internally by the function */ int rl_cnt; /* initialize to 0 */ char *rl_bufptr; /* initialize to rl_buf */ char rl_buf[MAXLINE];} Rline;void readline_rinit(int, void *, size_t, Rline *);ssize_t readline_r(Rline *);
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