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[unix-history] / usr / src / lib / libc / string / strcat.3

.\" Copyright (c) 1990, 1991 The Regents of the University of California.
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.\"     @(#)strcat.3	5.6 (Berkeley) 6/29/91
.\"
.Dd June 29, 1991
.Dt STRCAT 3
.Os
.Sh NAME
.Nm strcat
.Nd concatenate strings
.Sh SYNOPSIS
.Fd #include <string.h>
.Ft char *
.Fn strcat "char *s" "const char *append"
.Ft char *
.Fn strncat "char *s" "const char *append" "size_t count"
.Sh DESCRIPTION
The
.Fn strcat
and
.Fn strncat
functions
append a copy of the null-terminated string
.Fa append
to the end of the null-terminated string
.Fa s ,
then add a terminating
.Ql \e0 .
The string
.Fa s
must have sufficient space to hold the result.
.Pp
The
.Fn strncat
function
appends not more than
.Fa count
characters.
.Sh RETURN VALUES
The
.Fn strcat
and
.Fn strncat
functions
return the pointer
.Fa s .
.Sh SEE ALSO
.Xr bcopy 3 ,
.Xr memccpy 3 ,
.Xr memcpy 3 ,
.Xr memmove 3 ,
.Xr strcpy 3
.Sh STANDARDS
The
.Fn strcat
and
.Fn strncat
functions
conform to
.St -ansiC .