Using macro to check null values [migrated]
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poliron
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Published on 2012-04-08T19:09:47Z
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2012/04/08
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My C code contains many functions with pointers to different structs as parameteres which shouldn't be NULL pointers. To make my code more readable, I decided to replace this code:
if(arg1==NULL || arg2==NULL || arg3==NULL...) { return SOME_ERROR; }
With that macro: NULL_CHECK(arg1,arg2,...)
How should I write it, if the number of args is unknown and they can point to different structs?(I work in C99)
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