c - C 文件处理中的运行时检查失败 #2

Question

运行时检查失败#2 - 变量“文件名”周围的堆栈已损坏。

每当我尝试处理第一个内存位置时，我的代码都会工作。我可以正确处理 .txt 文件，并且可以打印它。然而，当我请求第二个内存位置时，程序崩溃了。我尝试增加文件名的大小，并且我还关闭了第一个文件，所以我一无所知。任何帮助都是可以接受的!谢谢!!

This is a photo of the output

这是我的代码:

#include <stdio.h>

#define SIZE 100 //100 entries (100lines on a file)
#define SENSORN 100

int main()
{
    FILE *fptr;
    char filename[1000];

    char dummy1[1];//dummy character that help me to erase what is the buffer when using gets()
    int numberOfSensors;
    int time[SENSORN][SIZE];
    float powerConsumption[SENSORN][SIZE];

    int sensor_num;
    int count1 = 0;

    printf("Please enter the number of sensors: ");
    scanf("%d", &numberOfSensors);

    //Asking for the link 
    //numberOfSensors - 1 because for example, if we want only 2 sensors we need sensor0 and sensor1 only
    for (sensor_num = 0; sensor_num <= (numberOfSensors - 1); sensor_num++)
    {
        printf("Please enter the file location for sensor %d\n", sensor_num);
        gets(dummy1);//clearing the buffer
        gets(filename);

        fptr = fopen(filename, "r");

        //if file cannot be opened, then display and error message
        if (fptr == NULL)
        {
            printf("Error opening the file! %s \n", filename);
            printf("Please restart the program \n");
            return 0; //exit the program
        }

        else
        {
            //Loop that let us read and print all the file by storing each value to its respective array

            while (!feof(fptr))
            {
                //storing all the values in their respective array
                //sensor_num is the sensor number
                //count1 is the line number we are reading from the file
                fscanf(fptr, "%d %f", &time[sensor_num][count1], &powerConsumption[sensor_num][count1]);

                //making sure we have all the values stored
                //Note: do not comment the following line in order to check that all values are stored
                fprintf(stdout, "%d %6.2f \n", time[sensor_num][count1], powerConsumption[sensor_num][count1]);
                count1++;
            }
        }
        //closing file
        fclose(fptr);
        }
    }
}

Answer 1

正如 Martin James 所说，char dummy1[1]; 是绝对禁忌。

使用fgets()代替gets()，因此代替

gets(dummy1);//clearing the buffer
gets(filename);`

尝试，

fgets( 文件名, sizeof(文件名) , stdin );