Bitwise operation

[Magix]

Hi,

I want to manipulate an incoming WORD as I receive byte by byte. let say 07
D4, which is 2004
I want to combine these two bytes and convert into decimal, then convert as
a string. (sprintf)

int MSB;
int LSB;
int Total;
char buf[5];

MSB = (0x07 << 8)
LSB= (0xD4 & 0x00FF)
Total = MSB | LSB
sprintf(buf, "%d",Total);

When I print buf in %s format, the output I expected is 2004. But it prints
"-long printf)d"
What is wrong in my code above ?

Thanks.

[Jack Klein]

On Fri, 30 Jul 2004 10:11:00 +0800, "Magix" <ma***@asia.com> wrote in
comp.lang.c:

Hi,

I want to manipulate an incoming WORD as I receive byte by byte. let say 07
D4, which is 2004
I want to combine these two bytes and convert into decimal, then convert as
a string. (sprintf)

int MSB;
int LSB;
int Total;
char buf[5];

MSB = (0x07 << 8)
LSB= (0xD4 & 0x00FF)
Total = MSB | LSB
sprintf(buf, "%d",Total);

When I print buf in %s format, the output I expected is 2004. But it prints
"-long printf)d"
What is wrong in my code above ?

Thanks.

There's nothing particularly wrong with what you posted. Copy the
real code from your editor and paste the actual text into another
post.

--
Jack Klein
Home: http://JK-Technology.Com
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alt.comp.lang.learn.c-c++
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[Emmanuel Delahaye]

Magix wrote on 30/07/04 :

int MSB;
int LSB;
int Total;
char buf[5];

MSB = (0x07 << 8)
LSB= (0xD4 & 0x00FF)
Total = MSB | LSB
sprintf(buf, "%d",Total);

This code is not compiling. Please post the exact code that is not
working.

--
Emmanuel
The C-FAQ: http://www.eskimo.com/~scs/C-faq/faq.html

"C is a sharp tool"

[cody]

I should work this way but try %i instead of %d.

--
cody

Freeware Tools, Games and Humour
http://www.deutronium.de.vu || http://www.deutronium.tk
"Magix" <ma***@asia.com> schrieb im Newsbeitrag
news:41********@news.tm.net.my...

Hi,

I want to manipulate an incoming WORD as I receive byte by byte. let say 07 D4, which is 2004
I want to combine these two bytes and convert into decimal, then convert as a string. (sprintf)

int MSB;
int LSB;
int Total;
char buf[5];

MSB = (0x07 << 8)
LSB= (0xD4 & 0x00FF)
Total = MSB | LSB
sprintf(buf, "%d",Total);

When I print buf in %s format, the output I expected is 2004. But it prints "-long printf)d"
What is wrong in my code above ?

Thanks.

[Emmanuel Delahaye]

cody wrote on 30/07/04 :

I should work this way but try %i instead of %d.

Why ? What do you think the difference is with printf()?

--
Emmanuel
The C-FAQ: http://www.eskimo.com/~scs/C-faq/faq.html

"C is a sharp tool"

[Tim Hagan]

"Magix" <ma***@asia.com> wrote in message news:41********@news.tm.net.my...

Hi,

I want to manipulate an incoming WORD as I receive byte by byte. let say 07
D4, which is 2004
I want to combine these two bytes and convert into decimal, then convert as
a string. (sprintf)

int MSB;
int LSB;
int Total;
char buf[5];

MSB = (0x07 << 8)
LSB= (0xD4 & 0x00FF)
Total = MSB | LSB
sprintf(buf, "%d",Total);

When I print buf in %s format, the output I expected is 2004. But it prints
"-long printf)d"
What is wrong in my code above ?

It doesn't compile. Besides, you omitted the most important piece of the
puzzle: the offending printf statement. Try this:

#include <stdio.h>

int main(void)
{
int MSB;
int LSB;
int Total;
char buf[5];

MSB = (0x07 << 8);
LSB= (0xD4 & 0x00FF);
Total = MSB | LSB;
sprintf(buf, "%d",Total);
printf("%s\n", buf);
return 0;
}

--
Tim Hagan

[Joe Wright]

Magix wrote:

Hi,

I want to manipulate an incoming WORD as I receive byte by byte. let say 07
D4, which is 2004
I want to combine these two bytes and convert into decimal, then convert as
a string. (sprintf)

int MSB;
int LSB;
int Total;
char buf[5];

MSB = (0x07 << 8)
LSB= (0xD4 & 0x00FF)
Total = MSB | LSB
sprintf(buf, "%d",Total);

When I print buf in %s format, the output I expected is 2004. But it prints
"-long printf)d"
What is wrong in my code above ?

Thanks.

You're missing at least three semicolons.

#include <stdio.h>
int main(void)
{
int MSB;
int LSB;
int Total;
char buf[5];
MSB = (0x07 << 8);
LSB = (0xD4 & 0x00FF);
Total = MSB | LSB;
sprintf(buf, "%d", Total);
printf("%s\n", buf);
return 0;
}

Mine works, why not yours? :-)
--
Joe Wright mailto:jo********@comcast.net
"Everything should be made as simple as possible, but not simpler."
--- Albert Einstein ---