| // RUN: %clang_cc1 -fsyntax-only -Wno-pointer-to-int-cast -verify -pedantic -Wsign-conversion %s |
| void foo() { |
| *(0 ? (double *)0 : (void *)0) = 0; |
| // FIXME: GCC doesn't consider the following two statements to be errors. |
| *(0 ? (double *)0 : (void *)(int *)0) = 0; // expected-error {{incomplete type 'void' is not assignable}} |
| *(0 ? (double *)0 : (void *)(double *)0) = 0; // expected-error {{incomplete type 'void' is not assignable}} |
| *(0 ? (double *)0 : (int *)(void *)0) = 0; // expected-error {{incomplete type 'void' is not assignable}} expected-warning {{pointer type mismatch ('double *' and 'int *')}} |
| *(0 ? (double *)0 : (double *)(void *)0) = 0; |
| *((void *) 0) = 0; // expected-error {{incomplete type 'void' is not assignable}} |
| double *dp; |
| int *ip; |
| void *vp; |
| |
| dp = vp; |
| vp = dp; |
| ip = dp; // expected-warning {{incompatible pointer types assigning to 'int *' from 'double *'}} |
| dp = ip; // expected-warning {{incompatible pointer types assigning to 'double *' from 'int *'}} |
| dp = 0 ? (double *)0 : (void *)0; |
| vp = 0 ? (double *)0 : (void *)0; |
| ip = 0 ? (double *)0 : (void *)0; // expected-warning {{incompatible pointer types assigning to 'int *' from 'double *'}} |
| |
| const int *cip; |
| vp = (0 ? vp : cip); // expected-warning {{discards qualifiers}} |
| vp = (0 ? cip : vp); // expected-warning {{discards qualifiers}} |
| |
| int i = 2; |
| int (*pf)[2]; |
| int (*pv)[i]; |
| pf = (i ? pf : pv); |
| |
| enum {xxx,yyy,zzz} e, *ee; |
| short x; |
| ee = ee ? &x : ee ? &i : &e; // expected-warning {{pointer type mismatch}} |
| |
| typedef void *asdf; |
| *(0 ? (asdf) 0 : &x) = 10; |
| |
| unsigned long test0 = 5; |
| test0 = test0 ? (long) test0 : test0; // expected-warning {{operand of ? changes signedness: 'long' to 'unsigned long'}} |
| test0 = test0 ? (int) test0 : test0; // expected-warning {{operand of ? changes signedness: 'int' to 'unsigned long'}} |
| test0 = test0 ? (short) test0 : test0; // expected-warning {{operand of ? changes signedness: 'short' to 'unsigned long'}} |
| test0 = test0 ? test0 : (long) test0; // expected-warning {{operand of ? changes signedness: 'long' to 'unsigned long'}} |
| test0 = test0 ? test0 : (int) test0; // expected-warning {{operand of ? changes signedness: 'int' to 'unsigned long'}} |
| test0 = test0 ? test0 : (short) test0; // expected-warning {{operand of ? changes signedness: 'short' to 'unsigned long'}} |
| test0 = test0 ? test0 : (long) 10; |
| test0 = test0 ? test0 : (int) 10; |
| test0 = test0 ? test0 : (short) 10; |
| test0 = test0 ? (long) 10 : test0; |
| test0 = test0 ? (int) 10 : test0; |
| test0 = test0 ? (short) 10 : test0; |
| |
| int test1; |
| enum Enum { EVal }; |
| test0 = test0 ? EVal : test0; |
| test1 = test0 ? EVal : (int) test0; |
| test0 = test0 ? |
| (unsigned) EVal |
| : (int) test0; // expected-warning {{operand of ? changes signedness: 'int' to 'unsigned long'}} |
| |
| test0 = test0 ? EVal : test1; // expected-warning {{operand of ? changes signedness: 'int' to 'unsigned long'}} |
| test0 = test0 ? test1 : EVal; // expected-warning {{operand of ? changes signedness: 'int' to 'unsigned long'}} |
| |
| const int *const_int; |
| int *nonconst_int; |
| *(test0 ? const_int : nonconst_int) = 42; // expected-error {{read-only variable is not assignable}} |
| *(test0 ? nonconst_int : const_int) = 42; // expected-error {{read-only variable is not assignable}} |
| |
| // The composite type here should be "int (*)[12]", fine for the sizeof |
| int (*incomplete)[]; |
| int (*complete)[12]; |
| sizeof(*(test0 ? incomplete : complete)); // expected-warning {{expression result unused}} |
| sizeof(*(test0 ? complete : incomplete)); // expected-warning {{expression result unused}} |
| |
| int __attribute__((address_space(2))) *adr2; |
| int __attribute__((address_space(3))) *adr3; |
| test0 ? adr2 : adr3; // expected-error{{conditional operator with the second and third operands of type ('__attribute__((address_space(2))) int *' and '__attribute__((address_space(3))) int *') which are pointers to non-overlapping address spaces}} |
| |
| // Make sure address-space mask ends up in the result type |
| (test0 ? (test0 ? adr2 : adr2) : nonconst_int); // expected-error{{conditional operator with the second and third operands of type ('__attribute__((address_space(2))) int *' and 'int *') which are pointers to non-overlapping address spaces}} |
| } |
| |
| int Postgresql() { |
| char x; |
| return ((((&x) != ((void *) 0)) ? (*(&x) = ((char) 1)) : (void) ((void *) 0)), (unsigned long) ((void *) 0)); // expected-warning {{C99 forbids conditional expressions with only one void side}} |
| } |
| |
| #define nil ((void*) 0) |
| |
| extern int f1(void); |
| |
| int f0(int a) { |
| // GCC considers this a warning. |
| return a ? f1() : nil; // expected-warning {{pointer/integer type mismatch in conditional expression ('int' and 'void *')}} expected-warning {{incompatible pointer to integer conversion returning 'void *' from a function with result type 'int'}} |
| } |
| |
| int f2(int x) { |
| // We can suppress this because the immediate context wants an int. |
| return (x != 0) ? 0U : x; |
| } |
| |
| #define NULL (void*)0 |
| |
| void PR9236() { |
| struct A {int i;} A1; |
| (void)(1 ? A1 : NULL); // expected-error{{non-pointer operand type 'struct A' incompatible with NULL}} |
| (void)(1 ? NULL : A1); // expected-error{{non-pointer operand type 'struct A' incompatible with NULL}} |
| (void)(1 ? 0 : A1); // expected-error{{incompatible operand types}} |
| (void)(1 ? (void*)0 : A1); // expected-error{{incompatible operand types}} |
| (void)(1 ? A1: (void*)0); // expected-error{{incompatible operand types}} |
| (void)(1 ? A1 : (NULL)); // expected-error{{non-pointer operand type 'struct A' incompatible with NULL}} |
| } |
| |