weird printf() behavior

[Kai-Min Sung]

Hi,
        I'm not sure if this is a valid bug or just a known quirk, but I
wrote the following test code and saw some rather strange output:

-- begin foo.c --
#include <stdio.h>

int main()
{
        float f = 1.1;

        printf("%x, %f\n", f, f);

        return 0;
}
-- end foo.c --

This output I see when I compile and run this is:

lever:~/tmp>./foo
a0000000, -0.000000

Somehow printing out the first hex argument clobbers the formatting of the
second floating-point argument. Can someone explain to me what's going on
here?

I'm testing this on a Redhat box using libc-2.2.5.

Thanks,
Kai-Min Sung