Hi Neil.

05-Nov-03 10:25:00, Neil Heller wrote to Jasen Betts


 JB>> // convert the bcd to to ascii

 JB>> sprintf(buf,"%x",bcd);   // not portable - but something

 NH> That's good, except each of the numbers in the byte had different
 NH> applications in the metering system with which I was working.

 NH> Also you would then have to run the resulting string (buf) through
 NH> a _really_ non-portable function, like atoi().

??? atoi() / atol() is ANSI

the problem with the above sprintf usage is that it relies on the byte
ordering of the BCD matching the machine byte ordering in the integer
"bcd".

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

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

 -=> Bye <=-
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