stpcpy(3) — Linux manual page

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ATTRIBUTES | CONFORMING TO | BUGS | EXAMPLES | SEE ALSO | COLOPHON

STPCPY(3)               Linux Programmer's Manual              STPCPY(3)

NAME         top

       stpcpy - copy a string returning a pointer to its end

SYNOPSIS         top

       #include <string.h>

       char *stpcpy(char *restrict dest, const char *restrict src);

   Feature Test Macro Requirements for glibc (see
   feature_test_macros(7)):

       stpcpy():
           Since glibc 2.10:
               _POSIX_C_SOURCE >= 200809L
           Before glibc 2.10:
               _GNU_SOURCE

DESCRIPTION         top

       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.

RETURN VALUE         top

       stpcpy() returns a pointer to the end of the string dest (that
       is, the address of the terminating null byte) rather than the
       beginning.

ATTRIBUTES         top

       For an explanation of the terms used in this section, see
       attributes(7).

       ┌──────────────────────────────────────┬───────────────┬─────────┐
       │Interface                             Attribute     Value   │
       ├──────────────────────────────────────┼───────────────┼─────────┤
       │stpcpy()                              │ Thread safety │ MT-Safe │
       └──────────────────────────────────────┴───────────────┴─────────┘

CONFORMING TO         top

       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.

BUGS         top

       This function may overrun the buffer dest.

EXAMPLES         top

       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);
       }

SEE ALSO         top

       bcopy(3), memccpy(3), memcpy(3), memmove(3), stpncpy(3),
       strcpy(3), string(3), wcpcpy(3)

COLOPHON         top

       This page is part of release 5.12 of the Linux man-pages project.
       A description of the project, information about reporting bugs,
       and the latest version of this page, can be found at
       https://www.kernel.org/doc/man-pages/.

GNU                            2021-03-22                      STPCPY(3)

Pages that refer to this page: strcpy(3)string(3)wcpcpy(3)feature_test_macros(7)signal-safety(7)