本文整理汇总了C++中MyVector::Clear方法的典型用法代码示例。如果您正苦于以下问题：C++ MyVector::Clear方法的具体用法？C++ MyVector::Clear怎么用？C++ MyVector::Clear使用的例子？那么, 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MyVector的用法示例。
在下文中一共展示了MyVector::Clear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: TestBasics
// This tests basic segmented vector construction and iteration.
void TestBasics()
{
// A SegmentedVector with a POD element type.
typedef SegmentedVector<int, 1024, InfallibleAllocPolicy> MyVector;
MyVector v;
int i, n;
MOZ_RELEASE_ASSERT(v.IsEmpty());
// Add 100 elements, then check various things.
i = 0;
for ( ; i < 100; i++) {
gDummy = v.Append(mozilla::Move(i));
}
MOZ_RELEASE_ASSERT(!v.IsEmpty());
MOZ_RELEASE_ASSERT(v.Length() == 100);
n = 0;
for (auto iter = v.Iter(); !iter.Done(); iter.Next()) {
MOZ_RELEASE_ASSERT(iter.Get() == n);
n++;
}
MOZ_RELEASE_ASSERT(n == 100);
// Add another 900 elements, then re-check.
for ( ; i < 1000; i++) {
v.InfallibleAppend(mozilla::Move(i));
}
MOZ_RELEASE_ASSERT(!v.IsEmpty());
MOZ_RELEASE_ASSERT(v.Length() == 1000);
n = 0;
for (auto iter = v.Iter(); !iter.Done(); iter.Next()) {
MOZ_RELEASE_ASSERT(iter.Get() == n);
n++;
}
MOZ_RELEASE_ASSERT(n == 1000);
// Pop off all of the elements.
MOZ_RELEASE_ASSERT(v.Length() == 1000);
for (int len = (int)v.Length(); len > 0; len--) {
MOZ_RELEASE_ASSERT(v.GetLast() == len - 1);
v.PopLast();
}
MOZ_RELEASE_ASSERT(v.IsEmpty());
MOZ_RELEASE_ASSERT(v.Length() == 0);
// Fill the vector up again to prepare for the clear.
for (i = 0; i < 1000; i++) {
v.InfallibleAppend(mozilla::Move(i));
}
MOZ_RELEASE_ASSERT(!v.IsEmpty());
MOZ_RELEASE_ASSERT(v.Length() == 1000);
v.Clear();
MOZ_RELEASE_ASSERT(v.IsEmpty());
MOZ_RELEASE_ASSERT(v.Length() == 0);
}