팔만코딩경
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Library DB
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get_next_line() 뽀개기 by suhshin
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Mandatory Part
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리턴 값
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리턴 값
get_next_line
1 : 한 라인이 읽혔을 때(A line has been read) 0 : EOF에 도달했을 때(EOF has been reached) -1 : 에러가 발생했을 때(An error happened)