25 lines · cpp
1// RUN: %clang_cc1 %s -verify -fno-builtin -std=c++142 3using size_t = decltype(sizeof(int));4 5#define _diagnose_if(...) __attribute__((diagnose_if(__VA_ARGS__)))6 7namespace operator_new {8struct T0 {9 int j = 0;10 static void *operator new(size_t i) _diagnose_if(i == sizeof(int), "yay", "warning"); // expected-note{{from 'diagnose_if'}}11};12 13struct T1 {14 int j = 0;15 static void *operator new[](size_t i) _diagnose_if(i == 8 * sizeof(int), "yay", "warning"); // expected-note 2{{from 'diagnose_if'}}16};17 18void run(int x) {19 new T0; // expected-warning{{yay}}20 new T1[8]; // expected-warning{{yay}}21 new T1[4][2]; // expected-warning{{yay}}22 new T1[x]; // no warning.23}24} // namespace operator_new25