Errata for Draft 0.6
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S7.4 - This statement is incorrect: "Notice that, for an array,
its name (e.g., letters) when used in an expression is equivalent
to its address (e.g., &letters), which is equal to the address of
its first element (e.g., &letters[0])."
    - The second of these (&letters) is not equivalent to the
    other two. For more information, see Q6.13 of Steve Summit's
    C FAQ (http://c-faq.com/).

S7.7 - Example points to the address of temporary objects; these
addresses are invalid once the function returns.
    - Change i and j to pointers *i and *j, and alter the function
    to suit.

S10.3.2 - Not an error, but mention that the do-while form is superior 
to the if-else form (see Summit's C-FAQ Q10.4). Note that Marshall Cline
gives the opposite recommendation in Q38.5 of his C++ FAQ Lite, 
(www.parashift.com/c++-faq-lite/), but I think Summit makes a more 
valid point.

S11.6 - The multequal_complex() function is incorrect.

S14.2.1 - vector_push_back is incorrect. Return value converts
size_t to int
    - to fix it, make return value status only: 0 if success, -1
    if fails. (For corrected version see online code.)

S15.3 - link-list insert_after() is incorrect. Will crash if
node->next is NULL
    - to fix it, test whether next == NULL before accessing next->prev.
    (For corrected version see online code.)