Steve,
It's not exactly prose, but the error message is correct. It says:
"Error: new can only create structs, dynamic arrays or class objects,
not char[]'s."
So:
1. You didn't try to allocate space for a struct (e.g. new struct_t.)
2. You didn't try to allocate space for a dynamic array (new char[5].)
3. You didn't try to allocate space for a class object (new Class.)
From your code, it's obvious what you were meaning to do, so I would
agree that changing this would be good. Options I see are:
1. Improve the error message, e.g.: "Error: new can only create structs,
sized dynamic arrays, or class objects; char[] cannot be created."
2. Change the compiler to react as if you used new char[0].
3. Special case the error message, e.g.: "Error: new can only create
dynamic arrays with an initial length, use 0 for empty."
-[Unknown]
Steve Teale wrote:
bearophile Wrote:
Steve Teale:
What am I missing here, isn't char[] a dynamic array?
I suggest you to post such questions to the "learn" newsgroup.
D dynamic arrays aren't objects, they are C-like structs that contain a just length and a
pointer (no capacity). The "new" for them is needed only to allocate the memory
they point to. So to define an empty dynamic array of chars:
char[] ca;
In D1 you can also just:
string s1;
To allocate a non empty array of chars of specified len:
auto ca = new char[some_len];
Tale a look at the D docs, where such things are explained.
Bye,
bearophile
So how do you interpret the error message?
