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#define MACRO_WITHOUT_REPEATED_ARG(x) (x)
#define MACRO_WITH_REPEATED_ARG(x) ((x) + (x))
static int g;
int function_with_side_effects(int i)
{
g += i;
return g;
}
void test()
{
int i;
i = MACRO_WITHOUT_REPEATED_ARG(1); // OK
i = MACRO_WITH_REPEATED_ARG(1); // OK
i = MACRO_WITHOUT_REPEATED_ARG(i); // OK
i = MACRO_WITH_REPEATED_ARG(i); // OK
i = MACRO_WITHOUT_REPEATED_ARG(function_with_side_effects(i)); // OK
i = MACRO_WITH_REPEATED_ARG(function_with_side_effects(i)); // NO WARNING
i = MACRO_WITHOUT_REPEATED_ARG(i++); // OK
i = MACRO_WITH_REPEATED_ARG(i++); // WARNING
}