1. Си / Говнокод #26006

    +1

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    // https://gcc.gnu.org/onlinedocs/cpp/Directives-Within-Macro-Arguments.html

// Occasionally it is convenient to use preprocessor directives within the arguments
// of a macro. The C and C++ standards declare that behavior in these cases is
// undefined. GNU CPP processes arbitrary directives within macro arguments in
// exactly the same way as it would have processed the directive were the
// function-like macro invocation not present. 

// If, within a macro invocation, that macro is redefined, then the new definition
// takes effect in time for argument pre-expansion, but the original definition is
// still used for argument replacement. Here is a pathological example:

#define f(x) x x
f (1
#undef f
#define f 2
f)

// which expands to

// 1 2 1 2

    Ну и хуйня.

    Запостил: j123123, 31 Октября 2019

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