freebsd-dev/lib/libc/string/strcat.3

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.\"     @(#)strcat.3	8.1 (Berkeley) 6/4/93
.\" $FreeBSD$
.\"
.Dd June 4, 1993
.Dt STRCAT 3
.Os
.Sh NAME
.Nm strcat
.Nd concatenate strings
.Sh LIBRARY
.Lb libc
.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 from
.Fa append ,
and then adds a terminating
.Ql \e0 .
.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 ,
.Xr strlcat 3 ,
.Xr strlcpy 3
.Sh STANDARDS
The
.Fn strcat
and
.Fn strncat
functions
conform to
.St -isoC .