I'd like to make a Feature Request for a new directive #if exists ( #include "filename.h" ) #endif. Here is example: #if exists ( "immintrin.h" ) #include "immintrin.h" #endif The directive should verify that some file exists in a folder and if Yes should set a "condition-variable" to true. Isn't that a good thing? Please consider and thank you in advance. Best regards, Sergey
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