Thread: scanf problem

I am currently trying to learn C and have stumbled accross the following problem:

Code:

double y = 7;
scanf("%f",&y);
printf("%f",y);

The above code is really simple but it does not produce the desired result, the printf command returns 7 no matter what i enter. Have I made a mistake?

The code works fine when i change the double to a float.

Thanks for your help!!

Cheers!!