mirror of https://github.com/mkerrisk/man-pages
131 lines
3.1 KiB
Groff
131 lines
3.1 KiB
Groff
.\" Copyright 1995 James R. Van Zandt <jrv@vanzandt.mv.com>
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.\"
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.\" %%%LICENSE_START(VERBATIM)
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.\" Permission is granted to make and distribute verbatim copies of this
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.\" manual provided the copyright notice and this permission notice are
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.\" preserved on all copies.
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.\"
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.\" Permission is granted to copy and distribute modified versions of this
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.\" manual under the conditions for verbatim copying, provided that the
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.\" entire resulting derived work is distributed under the terms of a
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.\" permission notice identical to this one.
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.\"
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.\" Since the Linux kernel and libraries are constantly changing, this
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.\" manual page may be incorrect or out-of-date. The author(s) assume no
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.\" responsibility for errors or omissions, or for damages resulting from
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.\" the use of the information contained herein. The author(s) may not
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.\" have taken the same level of care in the production of this manual,
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.\" which is licensed free of charge, as they might when working
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.\" professionally.
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.\"
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.\" Formatted or processed versions of this manual, if unaccompanied by
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.\" the source, must acknowledge the copyright and authors of this work.
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.\" %%%LICENSE_END
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.\"
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.TH STPCPY 3 2015-03-02 "GNU" "Linux Programmer's Manual"
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.SH NAME
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stpcpy \- copy a string returning a pointer to its end
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.SH SYNOPSIS
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.nf
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.B #include <string.h>
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.sp
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.BI "char *stpcpy(char *" dest ", const char *" src );
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.fi
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.sp
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.in -4n
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Feature Test Macro Requirements for glibc (see
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.BR feature_test_macros (7)):
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.in
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.sp
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.BR stpcpy ():
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.PD 0
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.ad l
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.RS 4
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.TP 4
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Since glibc 2.10:
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_XOPEN_SOURCE\ >=\ 700 || _POSIX_C_SOURCE\ >=\ 200809L
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.TP
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Before glibc 2.10:
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_GNU_SOURCE
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.RE
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.ad
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.PD
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.SH DESCRIPTION
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The
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.BR stpcpy ()
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function copies the string pointed to by
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.I src
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(including the terminating null byte (\(aq\\0\(aq)) to the array pointed to by
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.IR dest .
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The strings may not overlap, and the destination string
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.I dest
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must be large enough to receive the copy.
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.SH RETURN VALUE
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.BR stpcpy ()
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returns a pointer to the
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.B end
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of the string
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.I dest
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(that is, the address of the terminating null byte)
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rather than the beginning.
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.SH ATTRIBUTES
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For an explanation of the terms used in this section, see
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.BR attributes (7).
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.TS
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allbox;
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lb lb lb
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l l l.
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Interface Attribute Value
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T{
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.BR stpcpy ()
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T} Thread safety MT-Safe
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.TE
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.SH CONFORMING TO
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This function was added to POSIX.1-2008.
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Before that, it was not part of
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the C or POSIX.1 standards, nor customary on UNIX systems.
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It first appeared at least as early as 1986,
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in the Lattice C AmigaDOS compiler,
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then in the GNU fileutils and GNU textutils in 1989,
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and in the GNU C library by 1992.
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It is also present on the BSDs.
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.SH BUGS
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This function may overrun the buffer
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.IR dest .
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.SH EXAMPLE
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For example, this program uses
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.BR stpcpy ()
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to concatenate
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.B foo
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and
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.B bar
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to produce
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.BR foobar ,
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which it then prints.
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.nf
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#define _GNU_SOURCE
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#include <string.h>
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#include <stdio.h>
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int
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main(void)
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{
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char buffer[20];
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char *to = buffer;
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to = stpcpy(to, "foo");
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to = stpcpy(to, "bar");
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printf("%s\\n", buffer);
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}
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.fi
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.SH SEE ALSO
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.BR bcopy (3),
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.BR memccpy (3),
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.BR memcpy (3),
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.BR memmove (3),
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.BR stpncpy (3),
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.BR strcpy (3),
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.BR string (3),
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.BR wcpcpy (3)
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