On Saturday, June 21, 2003, at 10:23 AM, Dar Scott wrote:
I thought I'd report the negative number problem with baseConvert.
I'm on OS X; I haven't checked this on other platforms.
OK, Mark, here is what I've learned. The baseConvert() does not return the 2's complement if the msb of the 32-bit intermediate value is 1 as I had thought. It tacks a minus sign onto the result if it is 1. This will give you bad data for sure. One workaround is if your result of baseConvert(hexStr,16,10) starts with a minus, remove it. Since you want this numerical internally anyway, you can simple abs() the result. Either will continue to work if/when the bug is fixed.
This might explain the negative numbers.
(The baseConvert() function also addresses a minus sign in the input numeral. I think this might have trouble, too, but this should not concern you.)
Wanna see my test script and results?
I'll report this.
Dar Scott
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