PROLOG

       This  manual  page  is part of the POSIX Programmer's Manual.  The Linux implementation of this interface
       may differ (consult the corresponding Linux manual page for details of Linux behavior), or the  interface
       may not be implemented on Linux.

NAME

       stpcpy, strcpy — copy a string and return a pointer to the end of the result

SYNOPSIS

       #include <string.h>

       char *stpcpy(char *restrict s1, const char *restrict s2);
       char *strcpy(char *restrict s1, const char *restrict s2);

DESCRIPTION

       For  strcpy(): The functionality described on this reference page is aligned with the ISO C standard. Any
       conflict between the requirements described here and the ISO C standard is unintentional. This volume  of
       POSIX.1‐2017 defers to the ISO C standard.

       The stpcpy() and strcpy() functions shall copy the string pointed to by s2 (including the terminating NUL
       character) into the array pointed to by s1.

       If copying takes place between objects that overlap, the behavior is undefined.

RETURN VALUE

       The stpcpy() function shall return a pointer to the terminating NUL character copied into the s1 buffer.

       The strcpy() function shall return s1.

       No return values are reserved to indicate an error.

ERRORS

       No errors are defined.

       The following sections are informative.

EXAMPLES

   Construction of a Multi-Part Message in a Single Buffer
           #include <string.h>
           #include <stdio.h>

           int
           main (void)
           {
               char buffer [10];
               char *name = buffer;

               name = stpcpy (stpcpy (stpcpy (name, "ice"),"-"), "cream");
               puts (buffer);
               return 0;
           }

   Initializing a String
       The following example copies the string "----------" into the permstring variable.

           #include <string.h>
           ...
           static char permstring[11];
           ...
           strcpy(permstring, "----------");
           ...

   Storing a Key and Data
       The following example allocates space for a key using malloc() then uses strcpy() to place the key there.
       Then it allocates space for data using malloc(), and uses strcpy() to place data there. (The user-defined
       function dbfree() frees memory previously allocated to an array of type struct element *.)

           #include <string.h>
           #include <stdlib.h>
           #include <stdio.h>
           ...
           /* Structure used to read data and store it. */
           struct element {
               char *key;
               char *data;
           };

           struct element *tbl, *curtbl;
           char *key, *data;
           int count;
           ...
           void dbfree(struct element *, int);
           ...
           if ((curtbl->key = malloc(strlen(key) + 1)) == NULL) {
               perror("malloc"); dbfree(tbl, count); return NULL;
           }
           strcpy(curtbl->key, key);

           if ((curtbl->data = malloc(strlen(data) + 1)) == NULL) {
               perror("malloc"); free(curtbl->key); dbfree(tbl, count); return NULL;
           }
           strcpy(curtbl->data, data);
           ...

APPLICATION USAGE

       Character movement is performed differently in different implementations.  Thus,  overlapping  moves  may
       yield surprises.

       This  version  is  aligned  with  the  ISO C  standard;  this  does  not  affect  compatibility with XPG3
       applications. Reliable error detection by this function was never guaranteed.

RATIONALE

       None.

FUTURE DIRECTIONS

       None.

SEE ALSO

       strncpy(), wcscpy()

       The Base Definitions volume of POSIX.1‐2017, <string.h>

COPYRIGHT

       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1-2017, Standard
       for  Information  Technology  --  Portable  Operating  System  Interface  (POSIX),  The  Open  Group Base
       Specifications Issue 7, 2018 Edition, Copyright (C) 2018 by the Institute of Electrical  and  Electronics
       Engineers, Inc and The Open Group.  In the event of any discrepancy between this version and the original
       IEEE and The Open Group Standard, the original IEEE and The Open Group Standard is the referee  document.
       The original Standard can be obtained online at http://www.opengroup.org/unix/online.html .

       Any  typographical  or formatting errors that appear in this page are most likely to have been introduced
       during  the  conversion  of  the  source  files  to  man  page  format.  To  report  such   errors,   see
       https://www.kernel.org/doc/man-pages/reporting_bugs.html .