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Andrew Pardoe 2015-12-13 11:32:45 -08:00
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commit d33cfd97dd
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@ -3202,7 +3202,6 @@ You need a reason (use cases) for using a hierarchy.
auto p21 = make_unique<Point2>(1, 2); // make an object on the free store
auto p22 = p21.clone(); // make a copy
// ...
}
@ -11188,7 +11187,7 @@ Assume that `Apple` and `Pear` are two kinds of `Fruit`s.
void maul(Fruit* p)
{
*p = Pear{}; // put a Pear into *p
p[1] = Pear{}; // put a Pear into p[1]
p[1] = Pear{}; // put a Pear into p[2]
}
Apple aa [] = { an_apple, another_apple }; // aa contains Apples (obviously!)
@ -11213,10 +11212,10 @@ Note that `maul()` violates the a `T*` points to an individual object [Rule](#??
vector<Apple> va = { an_apple, another_apple }; // aa contains Apples (obviously!)
maul2(va); // error: cannot convert a vector<Apple> to a Fruit*
maul2(&va[0]); // you asked for it
maul2(aa); // error: cannot convert a vector<Apple> to a Fruit*
maul2(&aa[0]); // you asked for it
Apple& a0 = &va[0]; // a Pear?
Apple& a0 = &aa[0]; // a Pear?
Note that the assignment in `maul2()` violated the no-slicing [Rule](#???).
@ -13009,7 +13008,7 @@ This is not evil.
Some styles distinguishes types from non-types.
template<typename T>
typename<typename T>
class Hash_tbl { // maps string to T
// ...
};