On Mon, 02 Jan 2012 15:02:30 +0100, Joshua Reusch <yos...@arkandos.de>
wrote:
Is it possible to create a template turning any value into a lvalue?
This would be helpful if a function expects a reference but you dont
need the result of the change:
///decode(S)(in S str, ref size_t index);
auto c = std.utf.decode(some_string, lval!0);
template LRef( T, string f = __FILE__, int l = __LINE__ ) {
static T LRef;
}
ref T lref( T, string f = __FILE__, int l = __LINE__ )( T value ) {
LRef!( T, f, l ) = value;
return LRef!( T, f, l );
}
unittest {
assert( __traits( compiles, lref(0) = 3 ) );
}
This seems to work for me. 'course, there are limitations. Behind the
scenes, this creates a global variable per instantiation, and it
cannot be used more than once per line.
