调试失败!表达式:_BLOCK_TYPE_IS_VALID [英] Debug Assertion Failed! Expression: _BLOCK_TYPE_IS_VALID
问题描述
我收到此错误讯息:
调试失败!
Debug Assertion Failed!
表达式:_BLOCK_TYPE_US_VALID(pHead-> nBlockUse)
Expression:_BLOCK_TYPE_US_VALID(pHead->nBlockUse)
尝试执行以下操作
#include <vector>
#include <algorithm>
using namespace std;
class NN
{
public:
NN(const int numLayers,const int *lSz,const int AFT,const int OAF,const double initWtMag,const int UEW,const double *extInitWt);
double sse;
bool operator < (const NN &net) const {return sse < net.sse;}
};
class Pop
{
int popSize;
double a;
public:
Pop(const int numLayers,const int *lSz,const int AFT,const int OAF,const double initWtMag,const int numNets,const double alpha);
~Pop();
vector<NN> nets;
void GA(...);
};
Pop::Pop(const int numLayers,const int *lSz,const int AFT,const int OAF,
const double initWtMag,const int numNets,const double alpha)
{
popSize=numNets;
a=alpha;
nets.reserve(popSize);
for(int i=0;i<popSize;i++)
{
NN *net = new NN (numLayers,lSz,AFT,OAF,initWtMag,0,0);
nets.push_back(*net);
}
}
void Pop::GA()
{
...
sort(nets.begin(),nets.end());
...
}
错误似乎与排序相关功能。我检查网络矢量的所有实例,他们似乎是好的,有不同的sse的。有趣的是,我创建了一个更简单的上述代码的情况(见下文),它的工作没有任何错误。我正在毁坏我的大脑。请帮助。
The error appears to be related to the sort function. I check all instances of nets vector and they seem to be OK, having different sse's. The funny thing is that I created a simpler case of the above code (see below) and it worked without any errors. I am wrecking my brain. Please help.
#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
using namespace std;
class Student
{
public:
string name;
double grade;
Student(string,double);
bool operator < (const Student &st) const {return grade < st.grade;}
};
Student::Student(string stName,double stGrade)
{
name = stName;
grade = stGrade;
}
int main()
{
vector<Student> group;
Student *st;
st = new Student("Bill",3.5);
group.push_back(*st);
st = new Student("John",3.9);
group.push_back(*st);
st = new Student("Dave",3.1);
group.push_back(*st);
sort(group.begin(),group.end());
for each(Student st in group)
cout << st.name << " " << st.grade << endl;
cin.get();
return(0);
}
推荐答案
_BLOCK_TYPE_IS_VALID断言触发,当您覆盖由 new
分配的块的标题时。当你切片对象,使用死对象等时,会发生这种情况。
The _BLOCK_TYPE_IS_VALID assertion gets fired, when you overwrite the header of an block allocated by new
. This happens when you slice objects, use dead objects, etc.
你应该看看你的完整代码,并尝试从你的调试器中的数据。这个短代码片段包含几个好奇的C ++使用,但没有明显的点,这产生描述的错误(至少对我来说)。
You should have a look at your complete code, and try to work from the data you have in your debugger. This short code snippet contains several 'curious' usage of C++, but no obvious point at which this produces the described error (at least for me).
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