Question

我是C编程的初学者，我编写了程序，并试图通过终端运行程序

从终端：

 $ ./Countries 2 /home/david/CLionProjects/untitled/dddd.txt

我得到了错误：

  message: Segmentation fault (core dumped)

但是当我用Clion运行程序时，它的工作就完美了。我尝试使用dbg进行调试，但发现了错误：

Program received signal SIGSEGV, Segmentation fault.
_IO_fgets (buf=0x7fffffffdc00 "", n=300, fp=0x0) at iofgets.c:47
47  iofgets.c: No such file or directory.

似乎我的程序无法读取dddd.txt文件，我也无法理解为什么。

我的主：

#include <stdio.h>
#include "Countries.h"
#include "Countries.c"
#include <string.h>
int main(int argc, char *argv[]) {
    {

        int fortest= atoi(argv[1]); //number of Countries

        char *useForString; // use us to points to string use like name of country or city or food
        int incrementCountry = -1;// increment every time when enter country from input
        FILE *fp = fopen(argv[2], "r");
        int chooseOfclient;  //input from client number between 1-6
        char singLine[300]; //char array for the line from text
        Country **Atlas = buildCountry(fortest);  //build Countries arraywhile ((ch != '\n') && (ch != EOF))
        while (fgets(singLine, sizeof(singLine), fp))
        {//while1

            if (singLine[0] != '\t') {//if
                incrementCountry++;
                useForString = cutNameOfcountry(singLine);
                Atlas[incrementCountry] = inputNewCountry(useForString, cutCordiantesLeft(singLine),
                                                          cutCordiantesRight(singLine));
                free(useForString); // free the memory from heap that allocate inside cutNameOfCountr
                continue;
            }//if
            City *pCity = cutCityData(singLine);
            buildCity(Atlas[incrementCountry], pCity);
        }//while
return (0)
}

执行我的程序时出现分段错误（核心已转储）

0 个答案: