1 // RUN: %clang_cc1 %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 i = 0xFFFF0000 // expected-warning {{too large}} 14 }; 15 16 // minll maxull 17 enum x // expected-warning {{enumeration values exceed range of largest integer}} 18 { y = -9223372036854775807LL-1, // expected-warning {{ISO C restricts enumerator values to range of 'int'}} 19 z = 9223372036854775808ULL }; // expected-warning {{ISO C restricts enumerator values to range of 'int'}} 20 21 int test() { 22 return sizeof(enum e) ; 23 } 24 25 enum gccForwardEnumExtension ve; // expected-warning{{ISO C forbids forward references to 'enum' types}} \ 26 // expected-error{{tentative definition has type 'enum gccForwardEnumExtension' that is never completed}} \ 27 // expected-note{{forward declaration of 'enum gccForwardEnumExtension'}} 28 29 int test2(int i) 30 { 31 ve + i; // expected-error{{invalid operands to binary expression}} 32 } 33 34 // PR2020 35 union u0; // expected-note {{previous use is here}} 36 enum u0 { U0A }; // expected-error {{use of 'u0' with tag type that does not match previous declaration}} 37 38 39 // rdar://6095136 40 extern enum some_undefined_enum ve2; // expected-warning {{ISO C forbids forward references to 'enum' types}} 41 42 void test4() { 43 for (; ve2;) // expected-error {{statement requires expression of scalar type}} 44 ; 45 (_Bool)ve2; // expected-error {{arithmetic or pointer type is required}} 46 47 for (; ;ve2) // expected-warning {{expression result unused}} 48 ; 49 (void)ve2; 50 ve2; // expected-warning {{expression result unused}} 51 } 52 53 // PR2416 54 enum someenum {}; // expected-error {{use of empty enum}} 55 56 // <rdar://problem/6093889> 57 enum e0 { // expected-note {{previous definition is here}} 58 E0 = sizeof(enum e0 { E1 }), // expected-error {{nested redefinition}} 59 }; 60 61 // PR3173 62 enum { PR3173A, PR3173B = PR3173A+50 }; 63 64 // PR2753 65 void foo() { 66 enum xpto; // expected-warning{{ISO C forbids forward references to 'enum' types}} 67 enum xpto; // expected-warning{{ISO C forbids forward references to 'enum' types}} 68 } 69 70 // <rdar://problem/6503878> 71 typedef enum { X = 0 }; // expected-warning{{typedef requires a name}} 72 73 74 enum NotYetComplete { // expected-note{{definition of 'enum NotYetComplete' is not complete until the closing '}'}} 75 NYC1 = sizeof(enum NotYetComplete) // expected-error{{invalid application of 'sizeof' to an incomplete type 'enum NotYetComplete'}} 76 }; 77 78 /// PR3688 79 struct s1 { 80 enum e1 (*bar)(void); // expected-warning{{ISO C forbids forward references to 'enum' types}} 81 }; 82 83 enum e1 { YES, NO }; 84 85 static enum e1 badfunc(struct s1 *q) { 86 return q->bar(); 87 } 88 89 90 // Make sure we don't a.k.a. anonymous enums. 91 typedef enum { 92 an_enumerator = 20 93 } an_enum; 94 char * s = (an_enum) an_enumerator; // expected-warning {{incompatible integer to pointer conversion initializing 'char *' with an expression of type 'an_enum'}} 95 96 // PR4515 97 enum PR4515 {PR4515a=1u,PR4515b=(PR4515a-2)/2}; 98 int CheckPR4515[PR4515b==0?1:-1]; 99 100 // PR7911 101 extern enum PR7911T PR7911V; // expected-warning{{ISO C forbids forward references to 'enum' types}} 102 void PR7911F() { 103 switch (PR7911V); // expected-error {{statement requires expression of integer type}} 104 } 105 106 char test5[__has_feature(enumerator_attributes) ? 1 : -1]; 107 108 // PR8694 109 // rdar://8707031 110 void PR8694(int* e) // expected-note {{passing argument to parameter 'e' here}} 111 { 112 } 113 114 void crash(enum E* e) // expected-warning {{declaration of 'enum E' will not be visible outside of this function}} \ 115 // expected-warning {{ISO C forbids forward references to 'enum' types}} 116 { 117 PR8694(e); // expected-warning {{incompatible pointer types passing 'enum E *' to parameter of type 'int *'}} 118 } 119 120 typedef enum { NegativeShort = (short)-1 } NegativeShortEnum; 121 int NegativeShortTest[NegativeShort == -1 ? 1 : -1]; 122
