[PD-dev] passing symbol arguments to a method

[Krzysztof Czaja]

meaning:

if (image1_src != &s_) /* use image1_src->s_name */

but some superstitious coders (like myself) would write:

if (image1_src && image1_src != &s_)...

rzsz

Krzysztof Czaja wrote:
...
 > use image1_src->s_name (but only after making sure image1_src
 > is not null, because you have declared it as A_DEFSYM).