zencart网站时间问题,qq代挂主站网站建设,做非洲国际贸易网站,三大电商平台是哪三个该楼层疑似违规已被系统折叠 隐藏此楼查看此楼使用自身初始化#xff0c;具有indeterminate value#xff0c;可能是trap representation导致使用这个对象的值引起undefined behavior。但这个初始化语法上是正确的#xff0c;也没有语义错误。ISO C113.19.21 indeterminate …该楼层疑似违规已被系统折叠 隐藏此楼查看此楼使用自身初始化具有indeterminate value可能是trap representation导致使用这个对象的值引起undefined behavior。但这个初始化语法上是正确的也没有语义错误。ISO C113.19.21 indeterminate valueeither an unspecified value or a trap representation3.19.31 unspecified valuevalid value of the relevant type where this International Standard imposes no requirements on which value is chosen in any instance2 NOTE An unspecified value cannot be a trap representation.3.19.41 trap representationan object representation that need not represent a value of the object type6.17 Structure, union, and enumeration tags have scope that begins just after the appearance of the tag in a type specifier that declares the tag. Each enumeration constant has scope that begins just after the appearance of its defining enumerator in an enumerator list. Any other identifier has scope that begins just after the completion of its declarator.6.2.6.15 Certain object representations need not represent a value of the object type. If the stored value of an object has such a representation and is read by an lvalue expression that does not have character type, the behavior is undefined. If such a representation is produced by a side effect that modifies all or any part of the object by an lvalue expression that does not have character type, the behavior is undefined.50) Such a representation is called a trap representation.50) Thus, an automatic variable can be initialized to a trap representation without causing undefined behavior, but the value of the variable cannot be used until a proper value is stored in it.6.7.910 If an object that has automatic storage duration is not initialized explicitly, its value is indeterminate. ...
