[PD-dev] passing symbol arguments to a method

Krzysztof Czaja czaja at chopin.edu.pl
Tue Jul 2 18:26:18 CEST 2002


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

but some superstitious coders (like myself) would write:

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


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).

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