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Enum member std.traits.isLvalueAssignable
Returns true
iff an lvalue of type Rhs
can be assigned to a variable of
type Lhs
.
enum isLvalueAssignable(Lhs, Rhs)
= __traits(compiles, ()
{
lvalueOf!Lhs = lvalueOf!Rhs;
}
);
Example
struct S1
{
void opAssign(S1);
}
struct S2
{
void opAssign(ref S2);
}
static assert( isLvalueAssignable!(long, int));
static assert(!isLvalueAssignable!(int, long));
static assert( isLvalueAssignable!S1);
static assert( isLvalueAssignable!S2);
Authors
Walter Bright,
Tomasz Stachowiak (isExpressions
),
Andrei Alexandrescu,
Shin Fujishiro,
Robert Clipsham,
David Nadlinger,
Kenji Hara,
Shoichi Kato
License
Copyright © 1999-2022 by the D Language Foundation | Page generated by ddox.