1MEMCCPY(3P)                POSIX Programmer's Manual               MEMCCPY(3P)
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PROLOG

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

12       memccpy — copy bytes in memory
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SYNOPSIS

15       #include <string.h>
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17       void *memccpy(void *restrict s1, const void *restrict s2,
18           int c, size_t n);
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DESCRIPTION

21       The memccpy() function shall copy bytes from memory area  s2  into  s1,
22       stopping after the first occurrence of byte c (converted to an unsigned
23       char) is copied, or after n bytes are copied, whichever comes first. If
24       copying takes place between objects that overlap, the behavior is unde‐
25       fined.
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RETURN VALUE

28       The memccpy() function shall return a pointer to  the  byte  after  the
29       copy  of  c  in s1, or a null pointer if c was not found in the first n
30       bytes of s2.
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ERRORS

33       No errors are defined.
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35       The following sections are informative.
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EXAMPLES

38       None.
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APPLICATION USAGE

41       The memccpy() function does not check for the overflow of the receiving
42       memory area.
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RATIONALE

45       None.
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FUTURE DIRECTIONS

48       None.
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SEE ALSO

51       The Base Definitions volume of POSIX.1‐2017, <string.h>
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54       Portions  of  this text are reprinted and reproduced in electronic form
55       from IEEE Std 1003.1-2017, Standard for Information Technology --  Por‐
56       table  Operating System Interface (POSIX), The Open Group Base Specifi‐
57       cations Issue 7, 2018 Edition, Copyright (C) 2018 by the  Institute  of
58       Electrical  and  Electronics Engineers, Inc and The Open Group.  In the
59       event of any discrepancy between this version and the original IEEE and
60       The  Open Group Standard, the original IEEE and The Open Group Standard
61       is the referee document. The original Standard can be  obtained  online
62       at http://www.opengroup.org/unix/online.html .
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64       Any  typographical  or  formatting  errors that appear in this page are
65       most likely to have been introduced during the conversion of the source
66       files  to  man page format. To report such errors, see https://www.ker‐
67       nel.org/doc/man-pages/reporting_bugs.html .
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71IEEE/The Open Group                  2017                          MEMCCPY(3P)
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