Urgent C++ question

[UlricT]

I simply cannot figure this out:

I am doing some work on hex values, and I need to output values as sets of 2: 00 FF 03 4D etc...
My problem is that the values with a leading 0 (04 00 0F etc) are coming out only as 4 0 F.

Here is what I am using to output:
cout << hex << (buffer&0xff)<<endl;

any suggestions as to what I can do???

 

[UlricT]

ughhh.... I need help here guys

 

[CycloWizard]

Originally posted by: UlricT
I simply cannot figure this out:

I am doing some work on hex values, and I need to output values as sets of 2: 00 FF 03 4D etc...
My problem is that the values with a leading 0 (04 00 0F etc) are coming out only as 4 0 F.

Here is what I am using to output:
cout << hex << (buffer&0xff)<<endl;

any suggestions as to what I can do???

Store it as a string? Sorry, dunno C++, but free bump. 😛

 

[EagleKeeper]

Try to use sprintf to format the string prior to output.

 

[UlricT]

got it... used some dumb if statements to get around the problem. Basically converted to a decimal... compared whether < 16, and if so put a "0" at the beginning 😛

 

[EagleKeeper]

Originally posted by: UlricT
got it... used some dumb if statements to get around the problem. Basically converted to a decimal... compared whether < 16, and if so put a "0" at the beginning 😛

Another way would be to add 256 to the origbinal number, conber it to hex and stip off the leading character. No if required

 

[oog]

you can use the format library from boost: http://www.boost.org/libs/format/. it's also possible that some of the formatting functions on the stream (cout) will also do the same thing, but i didn't look into it.

 

[PCHPlayer]

Try: cout << hex << setw(2) << setfill('0') << value;