[Dev-C++] Simple Question

[Scott W. <se...@al...>]

Hi,
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This is more of a general C question but just in case it=92s compiler =
dependent. . .
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I=92m curious how the following is handled:
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#define PI 3.1415
#define TWOPI (2.0 * PI)
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Does this add a flop everywhere TWOPI is used or is the expression =
evaluated to 6.2830 and then inserted?  If the latter, with what =
precision is the evaluation done (e.g., what does TWOPI look like if I =
#define PI to 20 digits?).
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Thanks.
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Scott
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