null condition 中文意思是什麼
null condition
解釋
零的條件-
To avoid a race condition where the last handler can be removed between the null check and the invocation of the event, event sources should also create a copy of the event before performing the null check and raising the event
若要避免爭用條件(最後一個處理程序會在空檢查和事件調用之間被移除) ,在執行空檢查和引發事件之前,事件源還應創建事件的一個副本。 -
Often, our efforts to develop robust programs by substituting null pointers for exceptional conditions actually limits control flow to the ordinary paths of method invocation and return, and buries evidence of where an exceptional condition occured
為開發健壯的程序我們經常用空指針代替異常的情況,但這實際上卻把控制流限制在方法調用和返回的普通方式,同時也隱藏了異常情況發生的跡象。 -
But you will often see methods that indicate such a condition by returning a null - pointer value and, perhaps, printing a message to
但是經常看到的方法是通過返回一個空指針值來表明這種情況(以及,可能列印一條消息到 -
Warning c6507 : annotation conflict : null property at deref 0 on a post condition must be a subset of the null property on the precondition
警告c6507 :批註沖突:後置條件中deref = 0處的null屬性必須是前置條件中null屬性的一個子集 -
A blank or null condition
空條件或null條件
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