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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 *dest, const char *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.

EXAMPLE

     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); }