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PROLOG | NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | EXAMPLES | APPLICATION USAGE | RATIONALE | FUTURE DIRECTIONS | SEE ALSO | COPYRIGHT |
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MEMCCPY(3P) POSIX Programmer's Manual MEMCCPY(3P)
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.
memccpy — copy bytes in memory
#include <string.h>
void *memccpy(void *restrict s1, const void *restrict s2,
int c, size_t n);
The memccpy() function shall copy bytes from memory area s2 into
s1, stopping after the first occurrence of byte c (converted to an
unsigned char) is copied, or after n bytes are copied, whichever
comes first. If copying takes place between objects that overlap,
the behavior is undefined.
The memccpy() function shall return a pointer to the byte after
the copy of c in s1, or a null pointer if c was not found in the
first n bytes of s2.
No errors are defined.
The following sections are informative.
None.
The memccpy() function does not check for the overflow of the
receiving memory area.
None.
None.
The Base Definitions volume of POSIX.1‐2017, string.h(0p)
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 .
IEEE/The Open Group 2017 MEMCCPY(3P)
Pages that refer to this page: string.h(0p)
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HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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