Problem with dumping long double

[takanaev]

At the first sorry for my English.

Here I have a problem with following code:

[code]
#include <stdio.h>
#include <float.h>

#if defined(FLOAT) && !defined(DOUBLE) && !defined(LONG_DOUBLE)
typedef float real;
#elif !defined(FLOAT) && defined(DOUBLE) && !defined(LONG_DOUBLE)
typedef double real;
#elif !defined(FLOAT) && !defined(DOUBLE) && defined(LONG_DOUBLE)
typedef long double real;
#else
#error Error: define FLOAT or DOUBLE or LONG_DOUBLE only
#endif

typedef union { real r; unsigned char ca[sizeof(real)]; } utype;

unsigned char get_max_unity(void)
{
volatile unsigned char i, j;

for(i = j = 1; j != 0; j <<= 1)
{
i = j;
}

return i;
}

void dump(utype number)
{
static unsigned char max_unity = 0;
unsigned char c;
int i, count;

if(!max_unity)
max_unity = get_max_unity();

for(count = 0, i = sizeof(real) - 1; i >= 0; i--)
{
for(c = max_unity; c != 0; c >>= 1, count++)
{
#if defined(FLOAT)
if(count == 1 || count == 9)
printf("*");
#elif defined(DOUBLE)
if(count == 1 || count == 12)
printf("*");
#elif defined(LONG_DOUBLE)
if(count == 1 || count == 16)
printf("*");
#endif

if((unsigned char)(number.ca[i] & c) == (unsigned char)0)
printf("%u", 0);
else
printf("%u", 1);
}
}
printf("\n");
}

int main(void)
{
real get_epsilon(void);
utype ut;

ut.r = -1.0;
dump(ut);
}
[/code]

Compling gcc main.c -DFLOAT or gcc main.c -DDOUBLE gives me correct
binary representation of float or double:
(* separates sign, exponent and mantissa)

FLOAT: 1*01111111*00000000000000000000000
DOUBLE:
1*01111111111*0000000000000000000000000000000000000000000000000000

but gcc -main.c -DLONG_DOUBLE gives incorrect result:

0*000000000000000*10111111111111111000000000000000000000000000000000000000000000000000000000000000

(wanted:
1*0111111111111111*0000000000000000000000000000000000000000000000000000000000000000000000000000000
)

Could you advice solution, pls?
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