Experimental Physics and
Industrial Control System

[email protected] (William Lupton) · Thu, 1 Oct 1998 09:55:18 -1000

Pete Jemian wrote:
>Is this a bug in the SNL v1.9.2?
>
>#define ERRVALUE  9.90E+09   /* bad macro definition */
>#define ERRVALUE  9900000000 /* good macro definition */

The SNL lex does not appear to support scientific notation for floating
point numbers. Amazing. Here's the relevant bit:

FPNUM   (([0-9]+)(\.[0-9]*)?)|(\.[0-9]+)

I will look into changing the definition to support any valid C floating
point number syntax. In the meantime, keep typing those zeroes.

William

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System