c - 查找 C 中的段错误

Question

我已经评论了所有我认为给我带来错误的代码，但我仍然得到它。这是我的代码:

int main(int argc, char **argv) {
    // argc is the number of command line arguments, in our case there are two
    // argv is an array of pointers, a[0] is the program name, a[1] will be sourcewav
    // and a[2] should be destwav
    FILE * source_file;
    FILE * destination_file = fopen(argv[2], "w") ;      // create destwav file

    if (argc != 3) {
        printf("Usage: requires two parameters: sourcewav and destwav");
        exit(1);

    }
    //source_file = fopen(argv[1], "r+");
    if (!source_file) {  // pointer is null, file can't be opened
        printf("Usage: %s sourcewav file cannot be opened\n", argv[0]);
            exit(1);
        }
    printf("1");
    remvocals(source_file, destination_file); // remove vocals

    int closed_properly = fclose(source_file); // has source_file successfully closed?
    if (closed_properly != 0) {
        printf("Usage: %s sourcewav was not closed properly\n", argv[0]);
        exit(1);
    }
    fclose(destination_file);
    return 0;
}

Answer 1

您检查源文件而不对其进行初始化。另外，remvocals 有什么作用？