本文整理汇总了C++中mozilla::WrapNotNull方法的典型用法代码示例。如果您正苦于以下问题：C++ mozilla::WrapNotNull方法的具体用法？C++ mozilla::WrapNotNull怎么用？C++ mozilla::WrapNotNull使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类mozilla的用法示例。
在下文中一共展示了mozilla::WrapNotNull方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: WrapNotNull
void
TestNotNullWithRefPtr()
{
// This MyRefType object will have a maximum refcount of 5.
NotNull<RefPtr<MyRefType>> r1 = WrapNotNull(new MyRefType(5));
// At this point the refcount is 1.
NotNull<RefPtr<MyRefType>> r2 = r1;
// At this point the refcount is 2.
NotNull<MyRefType*> r3 = r2;
(void)r3;
// At this point the refcount is still 2.
RefPtr<MyRefType> r4 = r2;
mozilla::Unused << r4;
// At this point the refcount is 3.
RefPtr<MyRefType> r5 = r3.get();
mozilla::Unused << r5;
// At this point the refcount is 4.
// No change to the refcount occurs because of the argument passing. Within
// f_ref() the refcount temporarily hits 5, due to the local RefPtr.
f_ref(r2);
// At this point the refcount is 4.
// At function's end all RefPtrs are destroyed and the refcount drops to 0
// and the MyRefType is destroyed.
}