问候每个人
我正在尝试使用gcc，g ++和amp;来编译和运行C，C ++和fortran中的多语言代码。 f77分别在UNIX中。我的程序由两部分组成，一部分在C中，另一部分在C ++中。它们通过C +中的main（）接口进行接口，而在这种情况下可以忽略fortran代码。
我遇到了很多问题，最明显的是在运行可执行文件时出现的分段错误。我之前的两个主题已经削减了它，不幸的是，似乎没有任何东西可以直接解决问题，除了在我的程序的任何一半中完全删除任何输入/输出过程，这是不可行的。
Accessing public class memory from C++ using C Output conflicts between C & C++
当我在程序的两个部分使用输入/输出时，我需要找到我收到分段错误的原因。所有源代码都编译完成，所有链接都成功完成，并且我知道每个部分（C＆amp; C ++）在单独链接时都可以工作，没有这样的分段错误（通过修改让它们单独工作）。我已经包含了两个部分之间接口的所有代码，并执行输入/输出功能。
任何帮助都会受到很大关注。
生成文件
products: SlowDynamic.exe
SlowDynamic.exe: main.o SA.o mersenne.o CFE.o BCs.o EMatrix.o Numbering.o KMatrix.o Solve.o MA_57.o blas.o MA_57_Depend.o Metis.o
f77 -L/usr/sfw/lib -R/usr/sfw/lib -lgcc_s -lstdc++ -o SlowDynamic.exe main.o \
SA.o mersenne.o CFE.o MA_57.o blas.o MA_57_Depend.o Metis.o\
BCs.o EMatrix.o Numbering.o KMatrix.o Solve.o
main.o: main.cpp
g++ -c -o main.o main.cpp
SA.o: SA.cpp
g++ -c -o SA.o SA.cpp
mersenne.o: mersenne.cpp
g++ -c -o mersenne.o mersenne.cpp
CFE.o: CFE.c
gcc -c -o CFE.o CFE.c
MA_57.o: MA_57.f
f77 -c -o MA_57.o MA_57.f
blas.o: blas.f
f77 -c -o blas.o blas.f
MA_57_Depend.o: MA_57_Depend.f
f77 -c -o MA_57_Depend.o MA_57_Depend.f
Metis.o: Metis.f
f77 -c -o Metis.o Metis.f
BCs.o: BCs.c
gcc -c -o BCs.o BCs.c
EMatrix.o: EMatrix.c
gcc -c -o EMatrix.o EMatrix.c
Numbering.o: Numbering.c
gcc -c -o Numbering.o Numbering.c
KMatrix.o: KMatrix.c
gcc -c -o KMatrix.o KMatrix.c
Solve.o : Solve.c
gcc -c -o Solve.o Solve.c
clean:
rm *.o Main.exe *.gpi
main.ccp
#include <iostream>
#include "SA.h"
using namespace std;
int main()
{
Initial.Initialize();
Parent.SA(Initial.Write);
system ("PAUSE");
return 0;
}
SA.h
#ifndef SA_H
#define SA_H
#include <vector>
class SimAnneal {
std::vector< std::vector<float> > DensityDomain;
float Solid_Ele_Num, Void_Ele_Num;
float Solid, Void;
double Energy;
double Time;
void Metropolis (double, int, int);
void Next_State (double, int);
double Schedule (double, int);
double ObjFunction ();
void Distribute ();
void Mutate ();
void Convert ();
void PrintDomain ();
void WriteResults (double, double, double, double, double);
public:
int x_max, y_max;
...
std::vector<float> DensityArray;
std::vector<float> EnergyArray;
...
void SA (int);
void Initialize ();
};
extern SimAnneal Initial, Parent, Child, Mutation, Best;
#endif
SA.cpp
include <math.h>
#include <iostream>
#include <fstream>
#include <time.h>
#include <vector>
#include "SA.h"
#include "CFE.h"
#include "randomc.h"
using namespace std;
SimAnneal Initial, Parent, Child, Mutation, Best;
...
void SimAnneal::Initialize ()
{
x_max = ReturnX();
y_max = ReturnY();
EnergyArray.resize(x_max*y_max);
DensityArray.resize(x_max*y_max);
...
Energy = ObjFunction();
}
...
void SimAnneal::PrintDomain ()
{
static ofstream OutputFile;
if (!OutputFile.is_open())
{
char FileName [] = "DensityDomain.txt";
OutputFile.open(FileName);
if (!OutputFile)
{
cerr << "Failed to open " << FileName << endl;
exit(EXIT_FAILURE);
}
//cout << "\nGenerating 'DensityDomain.txt'... \n" << endl;
}
for (int y = 0; y < y_max; y++)
{
for (int x = 0; x < x_max; x++)
{
OutputFile << DensityDomain[y][x] << " ";
}
OutputFile << endl;
}
OutputFile.close();
}
void SimAnneal::WriteResults (double i, double T, double x, double y, double z)
{
static ofstream OutputFile;
if (!OutputFile.is_open()) //check is file has been opened
{
char FileName [] = "Results.txt";
OutputFile.open(FileName);
if (!OutputFile)
{
cerr << "Failed to open " << FileName << endl;
exit(EXIT_FAILURE); //abort program
}
//cout << "\nWriting to file in progress... \n" << endl;
OutputFile << "Iterations" << '\t' << "Temperatures" << '\t' << "Sum Strain Energy" << endl; //<< "SwapNum1" << '\t' << "SwapNum2" << '\t' << "Distance" << endl;
OutputFile << endl;
Initial.Time = (int)time(0);
}
OutputFile << i << '\t' << T << '\t' << z << endl; //'\t' << y << '\t' << z << endl;
if (i == N_max || T <= T_abs)
{
Parent.Time = (int)time(0);
OutputFile << endl
<< "Settings: " << endl
<< "Initial Temperature: " << Initial.Temp << endl
<< "Temperature Iterations: " << i << endl
<< "Step Iterations: " << N_step << endl
<< endl
<< "Results: " << endl
<< "Final Temperature: " << Temp << endl
<< "Minimum: " << Energy << endl
<< "Computational Time (s): " << (Parent.Time-Initial.Time) << endl;
OutputFile.close();
}
}
CFE.h
#ifdef __cplusplus
extern "C" {
#endif
int ReturnX ();
int ReturnY ();
void CFE(float density[], float energy[], int Length);
#ifdef __cplusplus
}
#endif
CFE.c
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include "BCs.h"
#include "EMatrix.h"
#include "Numbering.h"
#include "KMatrix.h"
#include "fg_types.h"
#include "Solve.h"
int ReturnX ()
{
FILE *infile;
infile = fopen("test05", "r");
int elemX,elemY;
fscanf(infile, "%i %i", &elemX, &elemY);
fclose(infile);
return elemX;
}
int ReturnY () { Same but returns elemY }
void CFE(float density[], float energy[])
{
// Extensive use of fscanf(), printf() & fprintf()
// and the following:
FILE *outfile;
outfile = fopen("File.txt", "w");
if(outfile == NULL){
}
else{
for(n=0;n<8;n++)
{
for(m=0;m<8;m++)
{
fprintf(outfile,"%f",KE[n][m]);
fprintf(outfile,"\t");
}
fprintf(outfile,"\n");
}
}
fclose(outfile);
}
答案 0 :(得分：0)
我建议用批判的眼光审视你的代码，然后检查一下看起来很奇怪的东西。
我会为你做这件事，但目前C ++不在我的轮换中，我正在绊倒误报。例如，这引起了我的注意：
if (!OutputFile.is_open())
{
char FileName [] = "DensityDomain.txt";
OutputFile.open(FileName);
if (!OutputFile)
{
cerr << "Failed to open " << FileName << endl;
exit(EXIT_FAILURE);
}
//cout << "\nGenerating 'DensityDomain.txt'... \n" << endl;
}
在已经调用OutputFile和is_open()之后，如果open()为空，则会测试一半。它看起来好像1）OutputFile不会为空或2）你不应该在之前调用之前的方法来测试它。但我错了。
明白我的意思？