Else
4.2.4 Else
The ‘#else
’ directive can be added to a conditional to provide alternative text to be used if the condition fails. This is what it looks like:
#if expression text-if-true #else /* Not expression */ text-if-false #endif /* Not expression */
If expression is nonzero, the text-if-true is included and the text-if-false is skipped. If expression is zero, the opposite happens.
You can use ‘#else
’ with ‘#ifdef
’ and ‘#ifndef
’, too.
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Licensed under the GNU Free Documentation License, Version 1.3.
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