Thread: Bit Fields

I am having trouble printing the dates from a binary file. Here is the table that I am using for reference:


Here is my code:

Code:

#include <stdio.h>


struct MiscBits
{
    unsigned id: 2;
    unsigned category: 2;
    unsigned engaged : 1;
    unsigned reserved: 3;
};


struct Date {


    unsigned year: 7;
    unsigned month: 4;
    unsigned day: 5;


    unsigned hour: 5;
    unsigned minute: 6;
    unsigned reserved2: 5;


    unsigned second: 6;
    unsigned reserved3: 10;
};


struct Record {
    float latitude;
    float longitude;
    short altitude;
    char name[5];
    struct MiscBits Misc;
    char Reported[6];
    struct Date myDate;
} __attribute__((packed));




int main(){


    FILE *file;
    struct Record myRecord;
    file = fopen("tracks2.dat", "rb");


    for(int i=0;i<4;i++) {
        fread(&myRecord,22,1,file);
        printf("latitude: %f longitude: %f altitude: %d name: %s ", myRecord.latitude,myRecord.longitude,myRecord.altitude,myRecord.name);
        
        printf("%d %d %d %d %d %d %d %d", myRecord.myDate.year, myRecord.myDate.month, myRecord.myDate.day, myRecord.myDate.hour, myRecord.myDate.minute, myRecord.myDate.second);
        switch (myRecord.Misc.id) {
            case 0: printf("%s ", "ID: Uknown");
                break;
            case 1: printf("%s ", "ID: Friend");
                break;
            case 2: printf("%s ", "ID: Foe");
                break;
            case 3: printf("%s ", "ID: Neutral");
                break;
        }
        switch (myRecord.Misc.category) {
            case 0: printf("%s ", "Category: Ship");
                break;
            case 1: printf("%s ", "Category: Ground vehicle");
                break;
            case 2: printf("%s ", "Category: Airplane");
                break;
        }
        switch (myRecord.Misc.engaged){
            case 0: printf("%s\n ", "Not Engaged");
                break;
            case 1: printf("%s\n ", "Engaged");
                break;
        }
    }
    fclose(file);
    return(0);
}

My program prints the other structs out correctly but not the date struct.