最主要的原因是在TAU G2中,类或结构体变量都是看作指针的,如果在WATCH窗口看这些变量,在访问变量前,它们都是null,而在赋值之后会显示变量的地址,这和C语言对指针变量的处理基本相同。所以在给这些变量第1次赋值的时候就会报告访问空指针。如果想避免这个问题,就应该在赋值前先使用new关键词分配空间。如: CArray<...
为什么会出现这个错误呢? 最主要的原因是在TAU G2中,类或结构体变量都是看作指针的,如果在WATCH窗口看这些变量,在访问变量前,它们都是null,而在赋值之后会显示变量的地址,这和C语言对指针变量的处理基本相同。所以在给这些变量第1次赋值的时候就会报告访问空指针。如果想避免这个问题,就应该在赋值前先使用new关键...
Gaminic(1621) It's not just about setting a pointer to 0/NULL. Any pointer that isn't assigned an address is automatically a nullpointer (or at least some type of bad pointer you shouldn't be dereferencing). You should check that every pointer gets assigned an actual address (new, cop...
最主要的原因是在TAU G2中,类或结构体变量都是看作指针的,如果在WATCH窗口看这些变量,在访问变量前,它们都是null,而在赋值之后会显示变量的地址,这和C语言对指针变量的处理基本相同。所以在给这些变量第1次赋值的时候就会报告访问空指针。如果想避免这个问题,就应该在赋值前先使用new关键词分配空间。如: CArray<...
null-pointer Share Copy link Improve this question Follow askedApr 25, 2017 at 2:12 Ethan Baker 1 2 Answers Sorted by: 2 This: (*publications)[i].readData(); Should be: publications[i]->readData(); Share Copy link Improve this answer ...
void f(bool b) { int Arr[4] = {}; int* PArr[4] = {}; for (int i = 0; i < g(b); ++i) PArr[i] = &Arr[i]; for (int j = 0; j < g(b); ++j) *PArr[j] = 5; } results in Source.cpp(11): warning C6011: Dereferencing NULL pointer 'PArr[j]'. ...
I have the following lines which returned me C6011 warning, how can I solve this warning?Копировать WCHAR id[100]; HRESULT Foo::get_Id(WCHAR** get_IdResult) { *get_IdResult = id; //C6011 warning here... return S_OK; } ...
I have the following lines which returned me C6011 warning, how can I solve this warning?Copier WCHAR id[100]; HRESULT Foo::get_Id(WCHAR** get_IdResult) { *get_IdResult = id; //C6011 warning here... return S_OK; } Thanks....
“dereferencing 'void *' pointer [-werror]”这个错误提示意味着在代码中尝试对一个void *类型的指针进行解引用(dereferencing)操作,而编译器默认这是一个不安全的操作,因此给出了警告。当编译器设置中将警告视为错误(-Werror)时,这个警告就升级为了错误。 为何会出现该错误: 在C和C++中,void *是一个通用...
u->next = NULL; if((p->next->data)%2==0){ //报错 error: dereferencing pointer to incomplete type p1->next = u; p1 = p1->next; }else { p2->next = u; p2 = p2->next; } } } /*求两个递增有序单链表L1和L2中的公共元素,放入L3中*/ ...