SharedPtr.useCount

Returns the number of different SharedPtr instances

Returns the number of different SharedPtr instances (this included) managing the current object or 0 if there is no managed object.

struct SharedPtr

@property const scope nothrow @safe @nogc

ControlType.Shared

useCount

(

this This

)

()

Examples

SharedPtr!long x = null;

assert(x.useCount == 0);

x = SharedPtr!long.make(123);
assert(x.useCount == 1);

auto y = x;
assert(x.useCount == 2);

auto w1 = x.weak;    //weak ptr
assert(x.useCount == 2);

SharedPtr!long.WeakType w2 = x;   //weak ptr
assert(x.useCount == 2);

y = null;
assert(x.useCount == 1);

x = null;
assert(x.useCount == 0);
assert(w1.useCount == 0);

SharedPtr.useCount

Examples

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