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I suspect the reason Dennis was using atof() is because it'll read the
number up til it finds a non-numeric character, and return the numeric
portion.
By contrast, %DEC will simply back an exception, and return nothing when
it encounters non-numeric data. So you have to add code to find the
non-numeric data, and strip out only the part you want. In that way,
atof() is simpler.
But I agree with you about the precision problems with floatin point --
this is why I didn't use it in my version.
On 9/12/2012 2:59 PM, Barbara Morris wrote:
Don't use atof; it returns a float result which might lose some
accuracy, especially if you forget to use EVAL(H).
Use %DECH instead; it returns a decimal result with no loss of accuracy.
result = %DECH(p : 63: 31);
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