要读取文本文件中不存在的多余行吗？

Question

我的代码从C语言文件中读取数据时遇到问题：

typedef struct Data {
    int _num_of_lines;
    int **_the_data;
    int *_linse_len;
} Data;  

void readFile(char *f, Data *d) {

    FILE *in;
    char str[1000];
    in = fopen(f, "r");
    int i = 0;
    char *try;

    while (!feof(in)) {

        fgets(str, 100, (FILE*)in);

        if (i == d->_num_of_lines) {
            if (d->_num_of_lines == 0) {
                i++;
                d->_the_data = (int**)malloc(sizeof(int*));
                d->_linse_len = (int*)malloc(sizeof(int));
            } else {
                i *= 2;
                d->_the_data = (int**)realloc(d->_the_data, i * sizeof(int*));
                d->_linse_len = (int*)realloc(d->_linse_len, i * sizeof(int));
            }
        }

        try = strtok(str, " ");
        printf("%s\n", try);        

        d->_linse_len[d->_num_of_lines] = atoi(try);
        d->_the_data[d->_num_of_lines] = (int*)malloc(d->_linse_len[d->_num_of_lines] * sizeof(int));

        int j;
        for (j = 0; j < d->_linse_len[d->_num_of_lines]; j++) {
            try = strtok(NULL, " ");
            printf("-->%s\n", try);
            d->_the_data[d->_num_of_lines][j] = atoi(try);
        }

        d->_num_of_lines++;
    }

    d->_the_data = (int**)realloc(d->_the_data, d->_num_of_lines * sizeof(int*));
    d->_linse_len = (int*)realloc(d->_linse_len, d->_num_of_lines * sizeof(int));

    fclose(in);
}

这是我编写的函数，正在读取包含以下内容的文件

5 1 2 3 4 5
3 0 0 0
1 -17

在输出中我得到这个：

5
-->1
-->2
-->3
-->4
-->5
3
-->0
-->0
-->0
1
-->-17
1
-->(null)

我不知道它从哪里读取最后两个值。

我正在CentOS Linux上运行它；在我在Windows上运行此代码之前，它很好，并且没有获取最后两个值。