[Serdev] ENUM enhancements

[Greger V. Teigre]

Function: void * memmem (const void *haystack, size_t haystack-len,
const void *needle, size_t needle-len)
This is like strstr, but needle and haystack are byte arrays rather than 
null-terminated strings. needle-len is the length of needle and haystack-len 
is the length of haystack.

This function is a GNU extension.

Juha Heinanen wrote:
> Klaus Darilion writes:
>
>> My code works, but it was not that easy as I thought (probably due
>> to my weak C skills). I could not find any function that searches a
>> character in a string without terminating \0. Thus I copied the str
>> into a \0 terminated string first. Also it bloated up the code.
>
> write your own function that does the search.  copying should always
> be avoided if at all possible.
>
> -- juha
>
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