1 // Test for narrowing diagnostics 2 // { dg-do compile { target c++11 } } 3 4 #include <initializer_list> 5 6 struct A { int i; int j; }; 7 A a2 { 1.2 }; // { dg-error "narrowing" } 8 A a1 { 1, 2 }; // aggregate initialization 9 struct B { 10 B(std::initializer_list<int>); 11 }; 12 B b1 { 1, 2 }; // creates initializer_list<int> and calls constructor 13 B b2 { 1, 2.0 }; // { dg-error "narrowing" } 14 struct C { 15 C(int i, double j); 16 }; 17 C c1 = { 1, 2.2 }; // calls constructor with arguments (1, 2.2) 18 C c2 = { 1.1, 2 }; // { dg-error "narrowing" } 19 20 int j { 1 }; // initialize to 1 21 int k {}; // initialize to 0 22 23 // PR c++/36963 24 double d = 1.1; 25 float fa[] = { d, 1.1 }; // { dg-error "narrowing conversion of 'd'" } 26 constexpr double d2 = 1.1; 27 float fa2[] = { d2, 1.1 }; 28 29 // PR c++/49577 30 unsigned u{ -1 }; // { dg-error "narrowing" } 31 char c = char{ u }; // { dg-error "narrowing" } 32 33 // PR c++/50011 34 short unsigned su; 35 int i { su }; 36