Hi Neil.

08-Nov-03 13:14:00, Neil Heller wrote to Jasen Betts


 NH>> To make things more interesting, integer values were little
 NH>> endian but were only 12 bits long.  The 13th bit was the start of
 NH>> the next number. That way every 3 bytes held 2 integer values.

 JB>> use sscanf() instead of atoi() - you can specifiy field
 JB>> widths....

 NH> Hmmm... if I received a byte value (ASCII) 65 ('A') how would I
 NH> use sscanf() to specify that val_1 = 6 and val_2 = 5?  I've never
 NH> seen that done with sscanf(). Could you also do do that sprintf()?

you need to convert to hex first (I thought that was obvious from the
context, sorry.)

char buffer[20];
int received='A',val_2,val_2;

sprintf( buffer, "%02x", received);
sscansf( buffer, "%1d%1d", &val_1,&val_2);

it's slightly more impressive with longer inputs.

char buffer[20];
Long received=0x747323;
int val_1,val_2;

sprintf( buffer, "%06x", received);
sscansf( buffer, "%3d%3d", &val_1,&val_2);

 -=> Bye <=-

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