我試圖在Ubuntu 11.04中編譯一個在Windows中運行良好的程序,但它給出了上述錯誤。我對導致錯誤的行添加了註釋。下面的代碼:C錯誤:數組類型具有不完整的元素類型
route_input() {
int num_routes;//Variable to act as the loop counter for the loop getting route details
int x;
char route_id[3];
char r_source[20];
char r_destination[20];
int r_buses;
printf("Please enter the number of routes used: \n");
scanf("%d", &num_routes);
char routes_arr[num_routes][10];//An array to hold the details of each route
printf("\nNumber of routes is %d\n", num_routes);
struct route r[num_routes];//An array of structures of type route (This line causes the error)
fflush(stdin);
for (x = num_routes; x > 0; x--) {
printf("\nEnter the route number: ");
scanf("%s", r[x].route_num);
printf("Route number is %s", r[x].route_num);
printf("\nEnter the route source: ");
fflush(stdin);
scanf("%s", r[x].source);
printf("Source = %s", r[x].source);
printf("\nEnter the route destination: ");
fflush(stdin);
gets(r[x].destination);
printf("Destination = %s", r[x].destination);
printf("\nEnter the number of buses that use this route: ");
scanf("%d", &r[x].num_of_buses);
printf("Number of buses = %d", r[x].num_of_buses);
}
for (x = num_routes; x > 0; x--) {
printf("\n\n+++Routes' Details+++\nRoute number = %s, Source = %s, Destination = %s, Number of buses for this route = %d\n", r[x].route_num, r[x].source, r[x].destination, r[x].num_of_buses);
}
}
不要'fflush(stdin)',這是未定義的行爲。 – ouah
http://stackoverflow.com/questions/2274550/gcc-array-type-has-incomplete-element-type – deebee
什麼是'struct route',它在哪裏定義? – Mat