Thread: Need help to dissection a error code...

Hey,

Good day.

two lines of my error code.
Currently, when i debug to here. the "temp" value is 19.

Could you give me some dissection about "%02X".
How to modify it and then "temp" value could be set to 25.

Any help will be appreciated.

Code:

		char temp[4] = {0};
		sprintf(temp, "%02X ", 25);

Could you give me some dissection about "%02X".

%x represents hex values, which will give you 19.
if you want to store the decimal value 25 you need to use %d, and the 02 is not required.

Original function.

Code:

void Binary2HexString(const vector<unsigned char>& vec, string& result)
{
	if(vec.size() == 0)
		return;

	for(size_t i = 0; i < vec.size(); i++)
	{
		char temp[4] = {0};
		sprintf(temp, "%02X ", vec[i]);
		result.push_back(temp[0]);
		result.push_back(temp[1]);
		result.push_back(temp[2]);
	}
}

Fixed function.
Any good suggestion for this issue.
I really don't like my fix like this hard-code!

Code:

void Binary2HexString(const vector<unsigned char>& vec, string& result)
{
	if(vec.size() == 0)
		return;

	for(size_t i = 0; i < vec.size(); i++)
	{
		char temp[4] = {0};
		if (vec[i] < 10){
			sprintf(temp, "%02X ", vec[i]);
		}
		// if the vec[i] value bigger than 10, we must take use Dec instead of Hex to handle.
		else{	
			sprintf(temp, "%02d ", vec[i]);
		}
		result.push_back(temp[0]);
		result.push_back(temp[1]);
		result.push_back(temp[2]);
	}
}

>> I really don't like my fix like this hard-code!

That doesn't make any sense. If your intent is to convert to hex then your original function was correct. And IMO, I wouldn't add the space padding. Or else name the function Binary2HexStringWithPadding or such (or at least make it a parameter).

EDIT:
Actually, concerning the padding I suppose it makes sense since you're not printing it as one large number.

Sorry, i didn't report my problem clearly at the beginning. event i already posted twice.

if you want hex....

Yes. I really need hex to handle a lot of data.but i find the bug. that i can't convert "25口" to "25 " ....

That doesn't make any sense....

Sure. i also think so. :-)

I attached the debuging screen copy pictures to tell more.

Finially,

I want to get the below format log.

------------------------------------

< L [5]
< U4 [/1] 1 >
< A [/1] 'ProceedWithCarrier' >
< A [/1] 'CID1' >
< U1 [/1] 01 >
< L [3]
< L [2]
< A [/1] 'Capacity' >
< U1 [/1] 25 > // NOT 19 here
>
< L [2]
< A [/1] 'SubstrateCount' >
< U1 [/1] 25 > // NOT 19 here too.
>
< L [2]
< A [/1] 'Usage' >
< A [/1] 'PRODUCT' >
>
>
>
------------------------------------

and some time there are some log like these styles.

< U1 [/1] 01 >
....
< U1 [/1] 05 >
....

That's why i must fix the bug to meet Value of 25.etc.

Any guide. THANK YOU!!!
:-)