STRCPY(3POSIX)              POSIX Programmer's Manual             STRCPY(3POSIX)

       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.

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

       #include <string.h>

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

       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.1‐2008 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

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

       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.

       No errors are defined.

       The following sections are informative.

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

           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

           #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);

       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.



       strncpy(), wcscpy()

       The Base Definitions volume of POSIX.1‐2008, <string.h>

       Portions of this text are reprinted and reproduced in electronic form
       from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology
       -- Portable Operating System Interface (POSIX), The Open Group Base
       Specifications Issue 7, Copyright (C) 2013 by the Institute of Electrical
       and Electronics Engineers, Inc and The Open Group.  (This is POSIX.1-2008
       with the 2013 Technical Corrigendum 1 applied.) 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 .

       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 .

IEEE/The Open Group                   2013                        STRCPY(3POSIX)