condition.cpp revision 0777972d38a3125efed962b045704c30ae6965cf
1// RUN: clang -fsyntax-only -verify %s 2 3void test() { 4 int x; 5 if (x) ++x; 6 if (int x=0) ++x; 7 8 typedef int arr[10]; 9 while (arr x=0) ; // expected-error: {{an array type is not allowed here}} expected-error: {{initialization with "{...}" expected for array}} 10 while (int f()=0) ; // expected-error: {{a function type is not allowed here}} 11 12 struct S {} s; 13 if (s) ++x; // expected-error: {{expression must have bool type (or be convertible to bool) ('struct S' invalid)}} 14 while (struct S x=s) ; // expected-error: {{expression must have bool type (or be convertible to bool) ('struct S' invalid)}} 15 do ; while (s); // expected-error: {{expression must have bool type (or be convertible to bool) ('struct S' invalid)}} 16 for (;s;) ; // expected-error: {{expression must have bool type (or be convertible to bool) ('struct S' invalid)}} 17 switch (s) {} // expected-error: {{statement requires expression of integer type ('struct S' invalid)}} 18 19 while (struct S {} x=0) ; // expected-error: {{types may not be defined in conditions}} expected-error: {{incompatible type}} expected-error: {{expression must have bool type}} 20 while (struct {} x=0) ; // expected-error: {{types may not be defined in conditions}} expected-error: {{incompatible type}} expected-error: {{expression must have bool type}} 21 switch (enum {E} x=0) ; // expected-error: {{types may not be defined in conditions}} expected-error: {{incompatible type}} 22 23 if (int x=0) { // expected-error: {{previous definition is here}} 24 int x; // expected-error: {{redefinition of 'x'}} 25 } 26 else 27 int x; // expected-error: {{redefinition of 'x'}} 28 while (int x=0) int x; // expected-error: {{redefinition of 'x'}} expected-error: {{previous definition is here}} 29 while (int x=0) { int x; } // expected-error: {{redefinition of 'x'}} expected-error: {{previous definition is here}} 30 for (int x; int x=0; ) ; // expected-error: {{redefinition of 'x'}} expected-error: {{previous definition is here}} 31 for (int x; ; ) int x; // expected-error: {{redefinition of 'x'}} expected-error: {{previous definition is here}} 32 for (; int x=0; ) int x; // expected-error: {{redefinition of 'x'}} expected-error: {{previous definition is here}} 33 for (; int x=0; ) { int x; } // expected-error: {{redefinition of 'x'}} expected-error: {{previous definition is here}} 34 switch (int x=0) { default: int x; } // expected-error: {{redefinition of 'x'}} expected-error: {{previous definition is here}} 35} 36