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 .