/* n_13_8.t: Grouping of sub-expressions in #if expression. */ /* 13.8: Unary operators are grouped from right to left. */ #if (- -1 != 1) || (!!9 != 1) || (-!+!9 != -1) || (~~1 != 1) #error Bad grouping of -, +, !, ~ in #if expression. #endif /* 13.9: ?: operators are grouped from right to left. */ #if (1 ? 2 ? 3 ? 3 : 2 : 1 : 0) != 3 #error Bad grouping of ? : in #if expression. #endif /* 13.10: Other operators are grouped from left to right. */ #if (15 >> 2 >> 1 != 1) || (3 << 2 << 1 != 24) #error Bad grouping of >>, << in #if expression. #endif /* 13.11: Test of precedence. */ #if 3*10/2 >> !0*2 >> !+!-9 != 1 #error Bad grouping of -, +, !, *, /, >> in #if expression. #endif /* 13.12: Overall test. Grouped as: ((((((+1 - -1 - ~~1 - -!0) & 6) | ((8 % 9) ^ (-2 * -2))) >> 1) == 7) ? 7 : 0) != 7 evaluated to FALSE. */ #if (((+1- -1-~~1- -!0&6|8%9^-2*-2)>>1)==7?7:0)!=7 #error Bad arithmetic of #if expression. #endif /* { dg-do preprocess } */