Thread: Explanation to a problem 2

Code:

#include <stdio.h>
int main()
{
        float f=0.0f;
        int i;

        for(i=0;i<10;i++)
                f = f + 0.1f;

        if(f == 1.0f)
                printf("f is 1.0 \n");
        else
                printf("f is NOT 1.0\n");

        return 0;
}

My question here is what does the "f" at the end of the values mean? Is it some specifier for a float or just part of the value?

And why is it used like this?

Mostly for specificity... The 1.0 could also be interpreted as a double in some cases.

1.0 will ever interpreted as double (C standard), therefore there are specifiers l or L for long double and f or F for float.