[Tutorial] Directives #if, #else, #elseif, #endif and #error

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Vince
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24.04.2015, 18:51

You two missed the point completely. "MyInfo" is a constant with value 3 (and constants should be written in all upper case), therefore when the preprocessor is done it will be fed to the compiler as:

PHP Code:



if(3 < 3)

Clearly, 3 isn't smaller than 3, so the compiler translates it to:

PHP Code:



if(false)

Therefore giving a compile time error because the corresponding compound block is never (or always) executed.

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Directives #if, #else, #elseif, #endif and #error - by Buthers - 23.04.2015, 21:19

Re: Directives #if, #else, #elseif, #endif and #error - by Vince - 24.04.2015, 14:27

Re: Directives #if, #else, #elseif, #endif and #error - by Azula - 24.04.2015, 15:56

Re: Directives #if, #else, #elseif, #endif and #error - by Misiur - 24.04.2015, 17:23

Re: Directives #if, #else, #elseif, #endif and #error - by Vince - 24.04.2015, 18:51

Re: Directives #if, #else, #elseif, #endif and #error - by Misiur - 24.04.2015, 19:00

Re: Directives #if, #else, #elseif, #endif and #error - by Azula - 24.04.2015, 19:59

Re : Re: Directives #if, #else, #elseif, #endif and #error - by Buthers - 24.04.2015, 20:32

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