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O que é ":-!!" no código C?
Eu encontrei esse código de macro estranho em /usr/include/linux/kernel.h : /* Force a compilation error if condition is true, but also produce a result (of value 0 and type size_t), so the expression can be used e.g. in a structure initializer (or where-ever else comma expressions aren't permitted). */ #define …
1665
c
linux
macros
linux-kernel