please tell me how to rectify my code

This is a discussion on please tell me how to rectify my code within the C Programming forums, part of the General Programming Boards category; Glue all four %lf together, just in case... Edit: No, i don't think that will do anything different. EditMore: Doesn't ...

  1. #31
    Programming Wraith GReaper's Avatar
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    Glue all four %lf together, just in case...

    Edit: No, i don't think that will do anything different.

    EditMore: Doesn't hurt to try, though.
    Last edited by GReaper; 12-20-2010 at 08:25 AM.
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  2. #32
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    Thumbs up

    Code:
    #include <stdio.h>
    #include <math.h>
    
    struct position
    {
        double latitude;
        double longitude;
    };
    
    double computeDistance(const struct position *p1, const struct position *p2)
    {
        const double latitude_dist = p1->latitude - p2->latitude;
        const double longitude_dist = p1->longitude - p2->longitude;
        return sqrt(latitude_dist * latitude_dist + longitude_dist * longitude_dist);
    }
    
    int main(void)
    {
        struct position p1, p2;
        if (scanf("%lf %lf %lf %lf",
            &p1.latitude, &p1.longitude, &p2.latitude, &p2.longitude) == 4)
        {
            printf("Distance = %f\n", computeDistance(&p1, &p2));
        }
        else
        {
            puts("Input error");
        }
        return 0;
    }
    works thanks a lot. i don't know what i did different.
    i built, rebuilt, and debugged every time. this code works.

    input : 1 2 3 4
    output : 2.828427
    Last edited by ilikeapplepie; 12-20-2010 at 08:30 AM. Reason: displaying input and output

  3. #33
    Programming Wraith GReaper's Avatar
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    Seems like VS08 finally decided to obey your command an compile the new code instead of the old one!!!
    Devoted my life to programming...

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