eclipse cygwin_exception::open_stackdumpfile：将堆栈跟踪转储到 *.exe.stackdump
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cygwin_exception::open_stackdumpfile: Dumping stack trace to *.exe.stackdump
提问by M.A.
I am getting "cygwin_exception::open_stackdumpfile: Dumping stack trace to TestProject.exe.stackdump" error. My project is nothing but a C++ HalloWorld project that contains an additional class in which I set and get a variable. I am getting this error at the line I try to set a matrix variable of type Eigen. Here is my code:
我收到“cygwin_exception::open_stackdumpfile: Dumping stack trace to TestProject.exe.stackdump”错误。我的项目只不过是一个 C++ HalloWorld 项目，其中包含一个额外的类，我在其中设置和获取一个变量。我在尝试设置 Eigen 类型的矩阵变量时遇到此错误。这是我的代码：
TestProject.cpp
测试项目.cpp
#include <iostream>
#include "TestClass.hpp"
using namespace std;
int main() {
cout << "!!!Hello World!!!" << endl; // prints !!!Hello World!!!
TestClass testClass;
Eigen::MatrixXd XX = testClass.getVariable();
cout << "X = " << XX;
return 0;
}
TestClass.hpp:
测试类.hpp：
#ifndef TESTCLASS_HPP_
#define TESTCLASS_HPP_
#include <Eigen/Core>
#include <Eigen/Eigenvalues>
#include <unsupported/Eigen/MatrixFunctions>
#include <Eigen/Geometry>
class TestClass {
private:
Eigen::MatrixXd X;
public:
TestClass();
void setVariable(Eigen::MatrixXd);
Eigen::MatrixXd getVariable();
virtual ~TestClass();
};
#endif /* TESTCLASS_HPP_ */
and finally the TestClass.cpp:
最后是TestClass.cpp：
#include "TestClass.hpp"
using namespace std;
TestClass::TestClass() {
X << 0, 1, 2;
}
TestClass::~TestClass() {
// TODO Auto-generated destructor stub
}
void TestClass::setVariable(Eigen::MatrixXd x){
X = x;
}
/* namespace std */
Eigen::MatrixXd TestClass::getVariable(){
return X;
}
The output I get in the Console is:
我在控制台中得到的输出是：
!!!Hello World!!!
0 [main] TestProject 8416 cygwin_exception::open_stackdumpfile: Dumping stack trace to TestProject.exe.stackdump
It is worth mentioning that when I change the type of the class variable X (and all related types in the methods and the header file) into an integer I don't get this error and the code compiles and runs.
值得一提的是，当我将类变量 X 的类型（以及方法和头文件中的所有相关类型）更改为整数时，我没有收到此错误并且代码编译并运行。
I would appreciate any help since I didn't find useful info online.
我很感激任何帮助，因为我没有在网上找到有用的信息。
Thanks
谢谢
回答by Christophe
You are using a dynamic sized Matrix X, and you try to comma initialize it without setting its size first. This will raise an exception:
您正在使用一个动态大小的矩阵 X，并且您尝试在没有先设置其大小的情况下对其进行逗号初始化。这将引发异常：
As explained here:
正如这里所解释的：
Eigen offers a comma initializer syntax which allows the user to easily set all the coefficients of a matrix, vector or array. Simply list the coefficients, starting at the top-left corner and moving from left to right and from the top to the bottom. The size of the object needs to be specified beforehand.
Eigen 提供了一个逗号初始化语法，允许用户轻松设置矩阵、向量或数组的所有系数。简单地列出系数，从左上角开始，从左到右，从上到下。需要事先指定对象的大小。
and here:
和这里：
The coefficients must be provided in a row major order and exactly match the size of the matrix. Otherwise an assertion is raised.
系数必须按行主要顺序提供，并且与矩阵的大小完全匹配。否则会引发断言。
So resize your matrix first:
所以首先调整你的矩阵：
TestClass::TestClass() {
X.resize (1,3);
X << 0, 1, 2;
}
