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Some minor updates for 15 years later.
author David A. Holland
date Tue, 31 May 2022 01:45:26 -0400
parents 13d2b8934445
children
line wrap: on
line source

#define ONE 1
#define DEF(x) defined(x)

... undefined, so either yes or no is ok, but error is better
#if DEF(ONE)
yes
#else
no
#endif