View source code
Display the source code in std/traits.d from which this page was generated on
github.
Improve this page
Quickly fork, edit online, and submit a pull request for this page.
Requires a signed-in GitHub account. This works well for small changes.
If you'd like to make larger changes you may want to consider using
local clone.
Page wiki
View or edit the community-maintained wiki page associated with this page.
Function std.traits.rvalueOf
Creates an lvalue or rvalue of type T for typeof(...) and
_traits(compiles, ...) purposes. No actual value is returned.
Prototype
{null} rvalueOf(T)();
Note
Trying to use returned value will result in a "Symbol Undefined" error at link time.
Examples
// Note that f doesn't have to be implemented
// as is isn't called.
int f(int);
bool f(ref int);
static assert(is(typeof(f(rvalueOf!int)) == int));
static assert(is(typeof(f(lvalueOf!int)) == bool));
int i = rvalueOf!int; // error, no actual value is returned
Authors
Walter Bright,
Tomasz Stachowiak (isExpressions