Exercise at end of Ch. 56 of "Programming in D"

johntp albertqaeda at yahoo.com
Mon Aug 15 01:47:43 UTC 2022

I'm using DMD64 D Compiler v2.100.0 on linux mint.

I kept getting an assertion error for my solution to the 
exercises at the end of Chapter 56 of "Programming in D", so I 
copied the author's solution and got the same thing.

The exercise is the very last one (exercise 3) about overriding
for the TriangleArea object.  The last couple of assertions fail 
for me.
assert(area2 in areas);
assert(area[area2] == 1.25;

Is there an errata page for the book?  I looked on the book's 
page and couldn't find it.  I can post the entire thing if you 
want, but I didn't want to clutter the forum until I made sure I 
didn't overlook something.  Thanks in advance.

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