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

NAME
       stpcpy - copy a string returning a pointer to its end

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

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

CONFORMING TO
       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
       This function may overrun the buffer dest.

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

GNU                                                                            2021-03-22                                                                      STPCPY(3)