Vectors can be cast between vectors of other types, and back-and-forth between the vector types and the special quad type, but none of these casts perform any data conversion.
向量可以在其他类型的向量之间进行转换,并在向量类型和特殊的quad类型之间反复进行转换,不过这些类型转换都不能执行任何数据转换。
Define conversion operators to simplify narrowing and widening conversions between numeric types.
定义转换操作符来简化数字类型之间的缩小和放大转换。
Two types are related if there is a conversion between them.
如果两个类型之间可以相互转换,则称这两个类型相关。
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