Default initialization explanations unclear in ch 1.3

[VictorEijkhout]

Possibly related to #21

Page 24: 6 lines from the bottom you use first "default-initialized", and next sentence "initalized by default". Are those the same? Then I'd suggest using twice the same phrase. This is confusing.

Also what's the relation of the first sentence to the second? Right now I'm reading it as "If no constructor is defined, members are initialzied by default EXCEPT if they are of built-in type, then not." Correct?

Then page 26 line 3: "prior to the function .... " So: if there is no constructor, built-in type members are not initialized by default, but if there is a default constructor they are? Truly weird. Might be worth remarking on.