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Make hasLvalueElements work with non-copyable

This commit is contained in:
Eugen Wissner 2018-10-22 08:39:38 +02:00
parent 4e8c9bd28f
commit 373a192b3a
1 changed files with 11 additions and 1 deletions
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12
source/tanya/range/primitive.d
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@ -1828,7 +1828,7 @@ template hasMobileElements(R)
*/
template hasLvalueElements(R)
{
private alias refDg = (ref ElementType!R e) => e;
private alias refDg = (ref ElementType!R e) => &e;
static if (isRandomAccessRange!R)
{
@ -1886,6 +1886,16 @@ template hasLvalueElements(R)
static assert(hasLvalueElements!R2);
}
// Works with non-copyable elements
@nogc nothrow pure @safe unittest
{
static struct NonCopyable
{
@disable this(this);
}
static assert(hasLvalueElements!(NonCopyable[]));
}
/**
* Determines whether the elements of $(D_PARAM R) are assignable.
*