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<...
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<...
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<...
Looks like you're trying to read memory location 0x70740724, and the operating system objects to this. If you were trying to dereference a null pointer, that would say location 0x00000000. Without much information to go on, it sounds like the object at that location had gone out of scope...
Sometimes, this warning identifies a pointer that the programmer believes cannot be NULL when it is dereferenced, but the code is subtly incorrect.For example:An allocation fails. Subsequent cleanup code, typically in a distant part of the function, references the NULL pointer while cleaning up ...
Before you derefrence a pointer, you could check if it is a null pointer with something like: if (myPointer != nullptr) /*do something with it*/ ; That should help you avoid the problem and hopefully locate it so that you can prevent trying to use a nullpointer. ...
Problem: Coverity warns about dereferencing NULL pointer. Solution: Bail out if vim_strrchr() returns NULL. *** CID 1616019: (NULL_RETURNS) /src/help.c: 834 in fix_help_buffer() 828 ...
Try checking for NULL-ness with if:Копировать if (get_IdResult != NULL) { *get_IdResult = id; } else { return E_POINTER; } GiovanniThursday, September 29, 2011 10:18 PMWe need to see how you are calling get_Id. The usual method would beWCHAR *ptr;get_Id(&ptr...
Compiling this simple TU: voiddo_stuff();int*ptr;intf(){while(!ptr)// Line 6do_stuff();// Line 7return*ptr;// Line 8} with “cl /nologo /Zs /analyze” diagnoses: repro.cpp(8) : warning C6011: Dereferencing NULL pointer 'ptr'. : Lines: 6, 7, 6, 7, 6, 8 ...
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]'. ...