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.\" Copyright (c) 1990, 1991 The Regents of the University of California. |
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.\" All rights reserved. |
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.\" |
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.\" This code is derived from software contributed to Berkeley by |
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.\" Chris Torek. |
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.\" Redistribution and use in source and binary forms, with or without |
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.\" modification, are permitted provided that the following conditions |
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.\" are met: |
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.\" 1. Redistributions of source code must retain the above copyright |
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.\" notice, this list of conditions and the following disclaimer. |
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.\" 2. Redistributions in binary form must reproduce the above copyright |
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.\" notice, this list of conditions and the following disclaimer in the |
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.\" documentation and/or other materials provided with the distribution. |
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.\" 3. Neither the name of the University nor the names of its contributors |
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.\" may be used to endorse or promote products derived from this software |
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.\" without specific prior written permission. |
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.\" |
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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.\" SUCH DAMAGE. |
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.\" |
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.\" $OpenBSD: string.3,v 1.13 2013/06/05 03:39:23 tedu Exp $ |
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.\" |
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.Dd $Mdocdate: June 5 2013 $ |
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.Dt STRING 3 |
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.Os |
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.Sh NAME |
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.Nm string |
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.Nd string specific functions |
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.Sh SYNOPSIS |
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.In string.h |
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.Ft char * |
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.Fn strcat "char *s" "const char *append" |
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.Ft char * |
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.Fn strlcat "char *s" "const char *append" "size_t size" |
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.Ft char * |
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.Fn strncat "char *s" "const char *append" "size_t count" |
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.Ft char * |
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.Fn strchr "const char *s" "int c" |
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.Ft char * |
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.Fn strrchr "const char *s" "int c" |
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.Ft int |
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.Fn strcmp "const char *s1" "const char *s2" |
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.Ft int |
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.Fn strncmp "const char *s1" "const char *s2" "size_t count" |
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.Ft int |
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.Fn strcasecmp "const char *s1" "const char *s2" |
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.Ft int |
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.Fn strncasecmp "const char *s1" "const char *s2" "size_t count" |
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.Ft char * |
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.Fn strcpy "char *dst" "const char *src" |
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.Ft char * |
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.Fn strlcpy "char *dst" "const char *src" "size_t size" |
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.Ft char * |
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.Fn strncpy "char *dst" "const char *src" "size_t count" |
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.Ft char * |
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.Fn strerror "int errno" |
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.Ft size_t |
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.Fn strlen "const char *s" |
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.Ft char * |
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.Fn strpbrk "const char *s" "const char *charset" |
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.Ft char * |
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.Fn strsep "char **stringp" "const char *delim" |
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.Ft size_t |
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.Fn strspn "const char *s" "const char *charset" |
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.Ft size_t |
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.Fn strcspn "const char *s" "const char *charset" |
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.Ft char * |
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.Fn strstr "const char *big" "const char *little" |
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.Ft char * |
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.Fn strtok "char *s" "const char *delim" |
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.Ft char * |
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.Fn index "const char *s" "int c" |
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.Ft char * |
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.Fn rindex "const char *s" "int c" |
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.Sh DESCRIPTION |
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The string functions |
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manipulate strings terminated by a |
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NUL byte. |
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.Pp |
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See the specific manual pages for more information. |
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For manipulating variable length generic objects as byte |
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strings (without the NUL-byte check), see |
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.Xr bstring 3 . |
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.Pp |
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Except as noted in their specific manual pages, |
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the string functions do not test the destination |
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for size limitations. |
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.Sh SEE ALSO |
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.Xr bstring 3 , |
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.Xr index 3 , |
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.Xr rindex 3 , |
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.Xr strcasecmp 3 , |
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.Xr strcat 3 , |
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.Xr strchr 3 , |
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.Xr strcmp 3 , |
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.Xr strcpy 3 , |
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.Xr strcspn 3 , |
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.Xr strerror 3 , |
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.Xr strlcat 3 , |
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.Xr strlcpy 3 , |
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.Xr strlen 3 , |
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.Xr strpbrk 3 , |
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.Xr strrchr 3 , |
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.Xr strsep 3 , |
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.Xr strspn 3 , |
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.Xr strstr 3 , |
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.Xr strtok 3 |
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.Sh STANDARDS |
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The |
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.Fn strcat , |
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.Fn strncat , |
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.Fn strchr , |
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.Fn strrchr , |
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.Fn strcmp , |
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.Fn strncmp , |
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.Fn strcpy , |
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.Fn strncpy , |
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.Fn strerror , |
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.Fn strlen , |
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.Fn strpbrk , |
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.Fn strspn , |
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.Fn strcspn , |
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.Fn strstr , |
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and |
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.Fn strtok |
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functions conform to |
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.St -ansiC . |