1MEMCCPY(3P) POSIX Programmer's Manual MEMCCPY(3P)
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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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13 memccpy — copy bytes in memory
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16 #include <string.h>
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18 void *memccpy(void *restrict s1, const void *restrict s2,
19 int c, size_t n);
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22 The memccpy() function shall copy bytes from memory area s2 into s1,
23 stopping after the first occurrence of byte c (converted to an unsigned
24 char) is copied, or after n bytes are copied, whichever comes first. If
25 copying takes place between objects that overlap, the behavior is unde‐
26 fined.
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29 The memccpy() function shall return a pointer to the byte after the
30 copy of c in s1, or a null pointer if c was not found in the first n
31 bytes of s2.
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34 No errors are defined.
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36 The following sections are informative.
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39 None.
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42 The memccpy() function does not check for the overflow of the receiving
43 memory area.
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46 None.
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49 None.
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52 The Base Definitions volume of POSIX.1‐2008, <string.h>
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55 Portions of this text are reprinted and reproduced in electronic form
56 from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology
57 -- Portable Operating System Interface (POSIX), The Open Group Base
58 Specifications Issue 7, Copyright (C) 2013 by the Institute of Electri‐
59 cal and Electronics Engineers, Inc and The Open Group. (This is
60 POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) In the
61 event of any discrepancy between this version and the original IEEE and
62 The Open Group Standard, the original IEEE and The Open Group Standard
63 is the referee document. The original Standard can be obtained online
64 at http://www.unix.org/online.html .
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66 Any typographical or formatting errors that appear in this page are
67 most likely to have been introduced during the conversion of the source
68 files to man page format. To report such errors, see https://www.ker‐
69 nel.org/doc/man-pages/reporting_bugs.html .
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73IEEE/The Open Group 2013 MEMCCPY(3P)