On 05/23/2010 12:30 AM, Rainer Deyke wrote:
On 5/22/2010 23:16, Mike Parker wrote:
That's not the problem. The problem is this:
const(char)* toStringz(const(char)[] s);
There's no equivalent for:
char *toStringz(char[] s);
Hence the need to cast away const or use a wrapper for non-const char*
args.
There is no way to define this function with the correct semantics in D.
'toStringz' must append a null character to the string, therefore it
cannot return a pointer to the original string data in the general case.
If you pass the resulting string to a function that mutates it, then
the changes will not be reflected in the original string.
If you pass the resulting string to a function that does /not/ mutate
it, then that function should be defined to take a 'const char *'.
There is a way, you could simply allocate a copy plus the \0 on the GC
heap. In fact that's what happens right now.
Andrei
