stpcpy — copy a string returning a pointer to its end
#include <string.h>
char
*stpcpy( |
char *dest, |
const char *src) ; |
Note | ||||||
---|---|---|---|---|---|---|
|
The stpcpy
() function copies
the string pointed to by src
(including the terminating
null byte ('\0')) to the array pointed to by dest
. The strings may not
overlap, and the destination string dest
must be large enough to
receive the copy.
stpcpy
() returns a pointer
to the end of the
string dest
(that is,
the address of the terminating null byte) rather than the
beginning.
For an explanation of the terms used in this section, see attributes(7).
Interface | Attribute | Value |
stpcpy () |
Thread safety | MT-Safe |
This function was added to POSIX.1-2008. Before that, it was not part of the C or POSIX.1 standards, nor customary on UNIX systems. It first appeared at least as early as 1986, in the Lattice C AmigaDOS compiler, then in the GNU fileutils and GNU textutils in 1989, and in the GNU C library by 1992. It is also present on the BSDs.
For example, this program uses stpcpy
() to concatenate “foo”
and “bar” to produce “foobar”, which it then
prints.
#define _GNU_SOURCE #include <string.h> #include <stdio.h> int main(void) { char buffer[20]; char *to = buffer; to = stpcpy(to, "foo"); to = stpcpy(to, "bar"); printf("%s\n", buffer); }
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Copyright 1995 James R. Van Zandt <jrvvanzandt.mv.com> %%%LICENSE_START(VERBATIM) Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies. Permission is granted to copy and distribute modified versions of this manual under the conditions for verbatim copying, provided that the entire resulting derived work is distributed under the terms of a permission notice identical to this one. Since the Linux kernel and libraries are constantly changing, this manual page may be incorrect or out-of-date. The author(s) assume no responsibility for errors or omissions, or for damages resulting from the use of the information contained herein. The author(s) may not have taken the same level of care in the production of this manual, which is licensed free of charge, as they might when working professionally. Formatted or processed versions of this manual, if unaccompanied by the source, must acknowledge the copyright and authors of this work. %%%LICENSE_END |