ZY Zhou <[email protected]> wrote:
But for the following case, it is complete wrong if it crash at line 3:
Why? That is the point where you are actually saying 'I care about
individual characters in this string'.
1: char[] c = [0xA0];
2: string s = c.idup;
3: foreach(dchar d; s){}
The expected result is either:
a) crash at line 2, c is not valid utf
and can't be converted to string
A char[] is just as bound by the rules as is string (which is simply
immutable(char)[]). Thus the program should feel free to expect it
to contain valid utf-8 data. Validating each string upon every single
copy operation is unacceptable overhead.
or:
b) don't crash, and d = 0xDCA0;
b is unacceptable in the general case. It may be good for your specific
situation, but in general, it is simply ignoring an error.
--
Simen
