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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.17.0/] [newlib/] [libc/] [stdio/] [getline.c] - Rev 387
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/* Copyright 2002, Red Hat Inc. - all rights reserved */ /* FUNCTION <<getline>>---read a line from a file INDEX getline ANSI_SYNOPSIS #include <stdio.h> ssize_t getline(char **<[bufptr]>, size_t *<[n]>, FILE *<[fp]>); TRAD_SYNOPSIS #include <stdio.h> ssize_t getline(<[bufptr]>, <[n]>, <[fp]>) char **<[bufptr]>; size_t *<[n]>; FILE *<[fp]>; DESCRIPTION <<getline>> reads a file <[fp]> up to and possibly including the newline character. The line is read into a buffer pointed to by <[bufptr]> and designated with size *<[n]>. If the buffer is not large enough, it will be dynamically grown by <<getdelim>>. As the buffer is grown, the pointer to the size <[n]> will be updated. <<getline>> is equivalent to getdelim(bufptr, n, '\n', fp); RETURNS <<getline>> returns <<-1>> if no characters were successfully read, otherwise, it returns the number of bytes successfully read. at end of file, the result is nonzero. PORTABILITY <<getline>> is a glibc extension. No supporting OS subroutines are directly required. */ #include <_ansi.h> #include <stdio.h> extern ssize_t _EXFUN(__getdelim, (char **, size_t *, int, FILE *)); ssize_t _DEFUN(__getline, (lptr, n, fp), char **lptr _AND size_t *n _AND FILE *fp) { return __getdelim (lptr, n, '\n', fp); }
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