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On Tue, Mar 31, 2015 at 2:21 PM, Roger Harman <roger.harman@xxxxxxxxxxx> wrote:
Ditto. If I wanted to ensure positive number, I would use abs() in C or %abs() in RPG.
Unary plus doesn't ensure a positive number. It just preserves the
sign of the operand. So +x is negative if x is negative.
The single most obvious *effect* of unary plus in C is that it creates
an integer (of natural size). So, if x is a short int (typically 2
bytes), then +x is a different data type (typically 4 bytes).
John Y.
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