unsigned long long int ????

unsigned long long int ????

[Suni B. Bongale]

The version number of the gcc that I am using is  gcc version 2.95.4
 
I have written a macro in the follwing source code to retrieve a
unsigned long long value form a character array
But when I compiled the code its giving error.
 
 
#include <stdio.h>
 
typedef unsigned long long U64bit;
 
#define   GTP_GET_U64BIT(p_buff)   (unsigned long long)\
          ((U64bit)((*(p_buff)) << 56) | (U64bit)((*(p_buff + 1)) << 48)
| \
          ((U64bit)((*(p_buff +2)) << 40) | (U64bit)((*(p_buff + 3)) <<
32) | \
          ((U64bit)((*(p_buff +4)) << 24) | (U64bit)((*(p_buff + 5)) <<
16) | \
          (U64bit)((*(p_buff + 6)) << 8) | (U64bit)(*(p_buff + 7)))
main()
{
    unsigned char imsi[9] = {255,255,255,255,255,255,255,255,255};
    unsigned long long b;
 
    b = GTP_GET_U64BIT(&imsi[0]);
    printf("%ul",b);
}
 
test1.c: In function `main':
test1.c:15: warning: left shift count >= width of type
test1.c:15: warning: left shift count >= width of type
test1.c:15: warning: left shift count >= width of type
test1.c:15: warning: left shift count >= width of type
test1.c:15: parse error before `;
 
Thanks for any help!
 
Regards
Sunil Bongale
 

Re: unsigned long long int ????

[Claudio Bley]

>>>>> "Suni" == Suni B Bongale <sbongale@nulinkinc.com> writes:

    Suni> The version number of the gcc that I am using is gcc version
    Suni> 2.95.4 I have written a macro in the follwing source code to
    Suni> retrieve a unsigned long long value form a character array
    Suni> But when I compiled the code its giving error.
 
It's giving errors because of unbalanced parenthesis. You have more
opening parenthesis than closing ones in your macro definition.

You should really use an editor which shows you the extent of your
parens (Emacs is good ;-).
 
I suppose what you wanted was something like:

#define   GTP_GET_U64BIT(p_buff)   (unsigned long long) \
          (((U64bit)(*(p_buff))       << 56) | \
           ((U64bit)((*(p_buff + 1))) << 48) | \
           ((U64bit)((*(p_buff + 2))) << 40) | \
           ((U64bit)((*(p_buff + 3))) << 32) | \
           ((U64bit)((*(p_buff + 4))) << 24) | \
           ((U64bit)((*(p_buff + 5))) << 16) | \
           ((U64bit)((*(p_buff + 6))) <<  8) | \
           ((U64bit)((*(p_buff + 7)))))

-- 
Claudio Bley                                                        _ 
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RE: unsigned long long int ????

[Nick DiToro]

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Title: RE: unsigned long long int ????





Try %lX (percent ELL X) instead of %X 
int main()
{
    unsigned long long int l = 0xFFFFFFFF00000000;


    printf("%lX\n", l);
}



-----Original Message-----
From: Liguo Song [ mailto:liguo.song@vanderbilt.edu ]
Sent: Thursday, October 12, 2000 11:42 AM
To: gcc-help@gcc.gnu.org
Subject: unsigned long long int ????


In the manual of GCC, it stated that long long int (64 bits) is
supported. But, I failed to make use of it in my program.


The following program would compile fine, but gives me the wrong output.
(0FFFFFFFF and 1FFFFFFFF).


The version number of the gcc that I am using is egcs-2.91.66.


Two questions:
    1. How to successfully printf the long long int?
    2. What else I need to do to make it work?


Thanks for any help!



Liguo (Leo)



**********************************************
int main()
{
    unsigned long long int l = 0xFFFFFFFF00000000;


    printf("%X%X\n", l);
    printf("%X%X\n", l+1ULL);
}

unsigned long long int ????

[Liguo Song]

In the manual of GCC, it stated that long long int (64 bits) is
supported. But, I failed to make use of it in my program.

The following program would compile fine, but gives me the wrong output.
(0FFFFFFFF and 1FFFFFFFF).

The version number of the gcc that I am using is egcs-2.91.66.

Two questions:
    1. How to successfully printf the long long int?
    2. What else I need to do to make it work?

Thanks for any help!


Liguo (Leo)


**********************************************
int main()
{
    unsigned long long int l = 0xFFFFFFFF00000000;

    printf("%X%X\n", l);
    printf("%X%X\n", l+1ULL);
}