本文整理汇总了C++中mozilla::ToMaybe方法的典型用法代码示例。如果您正苦于以下问题：C++ mozilla::ToMaybe方法的具体用法？C++ mozilla::ToMaybe怎么用？C++ mozilla::ToMaybe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::ToMaybe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: value
static bool
TestToMaybe()
{
BasicValue value(1);
BasicValue* nullPointer = nullptr;
// Check that a non-null pointer translates into a Some value.
Maybe<BasicValue> mayValue = ToMaybe(&value);
static_assert(IsSame<Maybe<BasicValue>, DECLTYPE(ToMaybe(&value))>::value,
"ToMaybe should return a Maybe<BasicValue>");
MOZ_RELEASE_ASSERT(mayValue.isSome());
MOZ_RELEASE_ASSERT(mayValue->GetTag() == 1);
MOZ_RELEASE_ASSERT(mayValue->GetStatus() == eWasCopyConstructed);
MOZ_RELEASE_ASSERT(value.GetStatus() != eWasMovedFrom);
// Check that a null pointer translates into a Nothing value.
mayValue = ToMaybe(nullPointer);
static_assert(IsSame<Maybe<BasicValue>, DECLTYPE(ToMaybe(nullPointer))>::value,
"ToMaybe should return a Maybe<BasicValue>");
MOZ_RELEASE_ASSERT(mayValue.isNothing());
return true;
}