NAME

memccpy — copy bytes in memory

SYNOPSIS

[XSI] #include <string.h>

void *memccpy(void *restrict s1, const void *restrict s2,
       int c, size_t n);

DESCRIPTION

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 not change the setting of errno on valid input.

RETURN VALUE

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.

ERRORS

No errors are defined.

EXAMPLES

None.

APPLICATION USAGE

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

RATIONALE

None.

FUTURE DIRECTIONS

None.

SEE ALSO

XBD <string.h>

CHANGE HISTORY

First released in Issue 1. Derived from Issue 1 of the SVID.

Issue 6

The restrict keyword is added to the memccpy() prototype for alignment with the ISO/IEC 9899:1999 standard.

Issue 8

Austin Group Defect 448 is applied, adding a requirement that memccpy() does not change the setting of errno on valid input.