1 // RUN: clang-cc %s -fsyntax-only -verify -pedantic 2 enum e {A, 3 B = 42LL << 32, // expected-warning {{ISO C restricts enumerator values to range of 'int'}} 4 C = -4, D = 12456 }; 5 6 enum f { a = -2147483648, b = 2147483647 }; // ok. 7 8 enum g { // too negative 9 c = -2147483649, // expected-warning {{ISO C restricts enumerator values to range of 'int'}} 10 d = 2147483647 }; 11 enum h { e = -2147483648, // too pos 12 f = 2147483648 // expected-warning {{ISO C restricts enumerator values to range of 'int'}} 13 }; 14 15 // minll maxull 16 enum x // expected-warning {{enumeration values exceed range of largest integer}} 17 { y = -9223372036854775807LL-1, // expected-warning {{ISO C restricts enumerator values to range of 'int'}} 18 z = 9223372036854775808ULL }; // expected-warning {{ISO C restricts enumerator values to range of 'int'}} 19 20 int test() { 21 return sizeof(enum e) ; 22 } 23 24 enum gccForwardEnumExtension ve; // expected-warning{{ISO C forbids forward references to 'enum' types}} \ 25 // expected-error{{tentative definition has type 'enum gccForwardEnumExtension' that is never completed}} \ 26 // expected-note{{forward declaration of 'enum gccForwardEnumExtension'}} 27 28 int test2(int i) 29 { 30 ve + i; // expected-error{{invalid operands to binary expression}} 31 } 32 33 // PR2020 34 union u0; // expected-note {{previous use is here}} 35 enum u0 { U0A }; // expected-error {{use of 'u0' with tag type that does not match previous declaration}} 36 37 38 // rdar://6095136 39 extern enum some_undefined_enum ve2; // expected-warning {{ISO C forbids forward references to 'enum' types}} 40 41 void test4() { 42 for (; ve2;) // expected-error {{statement requires expression of scalar type}} 43 ; 44 (_Bool)ve2; // expected-error {{arithmetic or pointer type is required}} 45 46 for (; ;ve2) // expected-warning {{expression result unused}} 47 ; 48 (void)ve2; 49 ve2; // expected-warning {{expression result unused}} 50 } 51 52 // PR2416 53 enum someenum {}; // expected-warning {{use of empty enum extension}} 54 55 // <rdar://problem/6093889> 56 enum e0 { // expected-note {{previous definition is here}} 57 E0 = sizeof(enum e0 { E1 }), // expected-error {{nested redefinition}} 58 }; 59 60 // PR3173 61 enum { PR3173A, PR3173B = PR3173A+50 }; 62 63 // PR2753 64 void foo() { 65 enum xpto; // expected-warning{{ISO C forbids forward references to 'enum' types}} 66 enum xpto; // expected-warning{{ISO C forbids forward references to 'enum' types}} 67 } 68 69 // <rdar://problem/6503878> 70 typedef enum { X = 0 }; // expected-warning{{typedef requires a name}} 71 72 73 enum NotYetComplete { // expected-note{{definition of 'enum NotYetComplete' is not complete until the closing '}'}} 74 NYC1 = sizeof(enum NotYetComplete) // expected-error{{invalid application of 'sizeof' to an incomplete type 'enum NotYetComplete'}} 75 }; 76 77 /// PR3688 78 struct s1 { 79 enum e1 (*bar)(void); // expected-warning{{ISO C forbids forward references to 'enum' types}} 80 }; 81 82 enum e1 { YES, NO }; 83 84 static enum e1 badfunc(struct s1 *q) { 85 return q->bar(); 86 } 87