Zilog Z80380 - Manual (Page 74)

Library Functions Run Time Environment
4–10 UM004001-COR1103
memchr FUNCTION
Header file statement: #include
Syntax: void *memchr ( const void *buf, int c, size_t count )
The memchr function looks for the first occurrence of c in the first count bytes of buf. It
stops when it finds c or when it has checked the first count bytes.
Return Value
If successful, memchr returns a pointer to the first location of c in buf. Otherwise, it returns
NULL.
memcmp FUNCTION
Header file statement: #include
Syntax: int memcmp (const void *buf1, const void *buf2, size_t count)
The memcmp function compares the first count bytes of buf1 and buf2 and returns a value
indicating their relationship, as follows:
Value Meaning
< 0 buf1 less than buf2
= 0 buf1 identical to buf2
> 0 buf1 greater than buf2
Return Value
The memcmp function returns an integer value, as described above.
Parameter Description
buf Pointer to buffer
c Character to look for
count Number of characters
Parameter Description
buf1 First buffer
buf2 Second buffer
count Number of characters