Thread: please tell me how to rectify my code

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.

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

Seems like VS08 finally decided to obey your command an compile the new code instead of the old one!!!