Reading hexadecimal values

[KVL]

Hello,

does anyone knows how to assign hex values to the variables Op en Ki
when reading them out of a file that looks e.g. like this:
Op 63 BF A5 0E E6 52 33
65 FF 14 C1 F4 5F 88
73 7D
Ki DB C2 46 41 2B 8C FA
30 7F 70 F0 A7 54 86
32 95
I found a function sscanf so maybe I can scan each line and convert the
values afterwards but what should I do with the text "OP" and "Ki".


Thanx for your help.

 

[bitwise]

You are pretty close. Do something like this:

int hex;
char *hex_string = "BF"
sscanf(hex_string,"%x",&hex);

Of course, you probably want to do something a little more fancy and put stuff in arrays but that is just details. If you're reading from a file look at the function fscanf().

-bitwise

 

[Zyrenthian]

i think this will also work fine

ifstream infile("input.txt"

int data;
infile>>hex>>data;


second option is

char* endPtr;
char buffer[2];
infile.getline(buffer,2);
data = strtol(buffer,endPtr,16);

Matt

 

[Zyrenthian]

Sorry, as for KI and OP the buffer method above would work with a strcmp. I forgot to make the buffer size 3 however and set the last character to Null

Matt