if (1) b="plot x*x"; @b

[Petr M. <mi...@ph...>]

There is a strange error happening with a not-yet-used variable:

gnuplot> load 'bug.gp'
         "bug.gp", line 4: warning: b is not a string variable

where bug.gp:

set macros
a=''
if (1) a="plot x"; @a
if (1) b="plot x*x"; @b

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PM