Result

Err alias Err = .Err!E: Undocumented in source.
Ok alias Ok = .Ok!T: Undocumented in source.
back alias back = front: Undocumented in source.
empty alias empty = isErr: Undocumented in source.
length alias length = isOk: Undocumented in source.
opDollar alias opDollar(size_t dim : 0) = length: Undocumented in source.
popBack alias popBack = popFront: Undocumented in source.

Functions

front inout(T) front(): Undocumented in source. Be warned that the author may not have intended to support it.
isErr bool isErr(): Undocumented in source. Be warned that the author may not have intended to support it.
isOk bool isOk(): Undocumented in source. Be warned that the author may not have intended to support it.
opAssign auto ref opAssign(U rhs): Undocumented in source. Be warned that the author may not have intended to support it.
opAssign auto ref opAssign(U rhs): Undocumented in source. Be warned that the author may not have intended to support it.
opEquals bool opEquals(Result rhs): Undocumented in source. Be warned that the author may not have intended to support it.
opEquals bool opEquals(U rhs): Undocumented in source. Be warned that the author may not have intended to support it.
opIndex ref opIndex(): Undocumented in source. Be warned that the author may not have intended to support it.
opIndex inout(T) opIndex(size_t index): Undocumented in source. Be warned that the author may not have intended to support it.
opIndex ref opIndex(size_t[2] dim): Undocumented in source. Be warned that the author may not have intended to support it.
opSlice size_t[2] opSlice(size_t start, size_t end): Undocumented in source. Be warned that the author may not have intended to support it.
popFront void popFront(): Undocumented in source. Be warned that the author may not have intended to support it.
save inout(Result) save(): Undocumented in source. Be warned that the author may not have intended to support it.

Static functions

err err(U err): Undocumented in source. Be warned that the author may not have intended to support it.
ok ok(U ok): Undocumented in source. Be warned that the author may not have intended to support it.

Variables

st SumType!(Ok, Err) st;: Undocumented in source.

Examples

alias R = Result!int;

assert(R.ok(3) == Ok!int(3));
assert(R.err("failure") == Err!string("failure"));

assert(R.ok(3).match!(
	(Err!string) => false, // use Ok/Err to match
	(int) => true,         // or use the underlying type to match
));

assert(R.init == R.init);
assert(R.ok(0) != R.err(""));


static assert(!__traits(compiles, R.init = Ok!(Ok!int).init));
static assert(!__traits(compiles, R.init = Ok!short.init)); // TODO: should this be allowed?

() @trusted
{
	assert((R.ok(3) = 10.ok) == 10.ok);
	assert((R.ok(3) = "failure".err) == "failure".err);
}
();

Result

Alias This

Members

Aliases

Functions

Static functions

Variables

Examples

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