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The
#else
directive
The
#else
directive can be added to a conditional to provide alternative text to
be used if the condition is false. The following example shows what it
resembles.
#if expression
text-if-true
#else /* Not expression */
text-if-false
#endif /* Not expression */
If expression
is nonzero,
and thus the text-if-true
is active, then #else
acts like a failing conditional and the text-if-false
is ignored. Contrarily, if the #if
conditional fails, the text-if-false
is considered included.
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