在C语言中,尽管没有“类”的概念(这是C++中的术语),但存在类似的问题,即“pointer to incomplete type”(指向不完整类型的指针)。以下是对你问题的详细回答: 1. 解释什么是“incomplete type” 在C语言中,一个类型如果在某个点上没有被完全定义,那么它就是“incomplete type”(不完整类型)。这通常发生在以下...
这时编译器会向我们报错:error: dereferencing pointer to incomplete type (错误:对指向不完整类型的指针进行解引用) 现在好了,用户看不见struct内部的具体细节了。 四、用不透明指针来实现一个ADT 也许你会问:是啊,用户看不见了,可我们编码的人也看不见了,因为我们也不知道那个struct some_struct是什么东西啊?
incomplete type// note: forward declaration of 'struct A' (line 3)// note: neither the destructor nor the class-specific operator delete will be called, even if they are declared when the class is defined// Microsoft cl: *** warning: deletion of pointer to incomplete type 'A'; no ...
规则8.2(强制): 不论何时声明或定义了一个对象或函数,它的类型都应显式声明。 externx;/* Non-compliant – implicit int type */externint16_tx ;/* Compliant – explicit type */consty ;/* Non-compliant – implicit int type */constint16_ty ;/* Compliant – explicit type */staticfoo(void)...
declares an object with type pointer to const int, which initially points to the previously declared object. The pointer itself does not have a qualified type--it points to a qualified type, and can be changed to point to essentially any int during program execution. pci cannot be used to ...
Compiler warning (level 2) C4150 deletion of pointer to incomplete type 'type'; no destructor called Compiler warning (level 4) C4152 nonstandard extension, function/data pointer conversion in expression Compiler warning (level 1) C4153 function/data pointer conversion in expression Compiler warning...
— A non-array lvalue with an incomplete type is used in a context that requires the value of the designated object (6.3.2.1). — An lvalue having array type is converted to a pointer to the initial element of the array, and the array object has register storage class (6.3.2.1). ...
Compiler warning (level 2) C4146unary minus operator applied to unsigned type, result still unsigned Compiler warning (level 2) C4150deletion of pointer to incomplete type 'type'; no destructor called Compiler warning (level 4) C4152nonstandard extension, function/data pointer conversion in express...
Compiler error C7636'%1$T': invalid expression type for '%2$I'; must be pointer-to-data Compiler error C7637%1$T: you cannot implicitly instantiate a class template while it is being defined Compiler error C7638/newAlignment argument must be a power of two ...
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