使用fscanf（）[duplicate]读取文本文件时出错

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这个问题在这里已有答案:

• Got stuck with Segmentation Fault Error 2 answers

陷入了分段错误错误2的答案

I am trying to read from a text file using fscanf() and I am getting the output:

我试图使用fscanf()从文本文件中读取,我得到输出:

Process finished with exit code -1073741819 (0xC0000005)

The crash happens the first time fscanf() is called. here is my code:

崩溃发生在第一次调用fscanf()时。这是我的代码:

int i=0;

FILE * trafficFile;
trafficFile = fopen("../trafficCount.txt","r");
if (trafficFile == NULL){
    printf("Could not open traffic file\n");
}

int n = 30;
fscanf(trafficFile,"%d",n);
printf("%d",n);

for (i = 0; i < n; i++){
    int temp = 0;
    int temp2 = 0;
    fscanf(trafficFile, "%d %d", temp, temp2);
    printf("%d %d\n", temp, temp2);
}
fclose(trafficFile);

Any help is appreciated.

任何帮助表示赞赏。

1 个解决方案

#1

You need to pass in the address of the integer variables to fscanf()

你需要将整数变量的地址传递给fscanf()

fscanf(trafficFile, "%d", &n);

fscanf(trafficFile, "%d %d", &temp, &temp2);