On Thu, 06 Nov 2008 18:22:36 +0300, Steven Schveighoffer
<[EMAIL PROTECTED]> wrote:
"James" wrote
im having problem in code below, while making my own file handler. the
data stored in buffer, so i can recall portion of data in diff format
and
length like int,short,etc. but im stuck with function getb() below. any
suggestion? thks.
struct T_FILE_RAM {
ubyte[] buffer;
int offset;
void getb(void* buf, int size) {
buf=&b[offset..offset+size]; //<-- prob here
}
void read(out uint x) { getb(&x, x.sizeof); }
void read(out ushort x) { getb(&x, x.sizeof); }
}
I think you meant this?
buf[0..size] = buffer[offset..offset+size];
And also, you need to increment offset, no?
offset += size.
I'd also recommend using a template:
void getb(T)(ref T t)
{
auto size = t.sizeof;
auto buf = (cast(ubyte *)&t)[0..size];
buf[] = buffer[offset..offset+size];
offset += size;
}
Now you don't need to implement each type, and you can call like this:
int x;
ushort y;
getb(x); // reads 4 bytes
getb(y); // reads 2 bytes
-Steve
Good solution also cares about endianess.
Also take a look at tango.io.protocol - it should cover all your needs.
