Option.opApply

Permit foreach over an option type.

int opApply(int delegate(Some!T) dg)
int opApply(int delegate(const(Some!T)) dg)
struct Option(T)
const
int
opApply
(
int delegate
(
const(Some!T)
)
dg
)
if (
is(T == class) ||
isPointer!T
)
int opApply(int delegate(immutable(Some!T)) dg)

Examples

Option!T value = null;

foreach(someValue; value) {
    // We never enter this loop body.
}

value = new T();

foreach(someValue; value) {
    // We enter this loop body exactly once.
}

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Source

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dstruct option Option aliases

opApplyReverse

constructors

this

functions

properties