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1.1 ! root 1: .\" Copyright (c) 1989 The Regents of the University of California. ! 2: .\" All rights reserved. ! 3: .\" ! 4: .\" Redistribution and use in source and binary forms are permitted provided ! 5: .\" that: (1) source distributions retain this entire copyright notice and ! 6: .\" comment, and (2) distributions including binaries display the following ! 7: .\" acknowledgement: ``This product includes software developed by the ! 8: .\" University of California, Berkeley and its contributors'' in the ! 9: .\" documentation or other materials provided with the distribution and in ! 10: .\" all advertising materials mentioning features or use of this software. ! 11: .\" Neither the name of the University nor the names of its contributors may ! 12: .\" be used to endorse or promote products derived from this software without ! 13: .\" specific prior written permission. ! 14: .\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED ! 15: .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF ! 16: .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. ! 17: .\" ! 18: .\" @(#)fgets.3 6.4 (Berkeley) 6/23/90 ! 19: .\" ! 20: .TH FGETS 3 "June 23, 1990" ! 21: .AT 3 ! 22: .SH NAME ! 23: fgets - get a line from a stream ! 24: .SH SYNOPSIS ! 25: .nf ! 26: .B #include <stdio.h> ! 27: ! 28: .B char *fgets(s, n, stream) ! 29: .B char *s; ! 30: .B int n; ! 31: .B FILE *stream; ! 32: .fi ! 33: .SH DESCRIPTION ! 34: The ! 35: .I fgets ! 36: function reads at most one less than the number of characters specified ! 37: by ! 38: .I n ! 39: from the stream pointed to by ! 40: .I stream ! 41: into the array pointed to by ! 42: .IR s . ! 43: No additional characters are read after a new-line character ! 44: (which is retained) or after end-of-file. ! 45: A null character is written immediately after the last character ! 46: read into the array. ! 47: .PP ! 48: The ! 49: .I fgets ! 50: function returns ! 51: .I s ! 52: if successful. ! 53: If end-of-file is encountered and no characters have been read ! 54: into the array, the contents of the array remain unchanged and ! 55: a null pointer is returned. ! 56: If a read error occurs during the operation, the array contents ! 57: are indeterminate and a null pointer is returned. ! 58: .SH "SEE ALSO" ! 59: getc(3), ferror(3) fread(3), scanf(3) ! 60: .SH STANDARDS ! 61: The ! 62: .I fgets ! 63: function is ANSI C compatible.
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