On 02-Sep-2016 15:23 -0600, Stone, Joel wrote:
<<SNIP>>
(Hopefully there is a better method than using an alpha screen
field and scraping it, scanning for a minus sign).
No need to scan. Just convert the string to numeric and monitor for
a failure; that conversion, e.g. using the RPG %dec() conversion BIF
expects a negative sign as prefix [as most other HLL string-to-numeric
conversion built-in operations], but also allows for a minus sign as
suffix instead, and prohibits any separators other than the decimal
separator [as do most other HLL string-to-numeric conversion built-in
operations].
Such a conversion also would avoid the possibility of the msg CPF5208
"Use of decimals not correct or too many numbers entered." that can
occur from the WS display [file] manager; be sure to review whether the
conversion that is used would effect rounding or truncating, and revise
the effect as appropriate for the application. As I recall, the ILE RPG
%dec() truncates.
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