llvm-project/clang/test/SemaCXX/decl-expr-ambiguity.cpp

44 lines
1.4 KiB
C++

// RUN: %clang_cc1 -fsyntax-only -verify -pedantic-errors %s
void f() {
int a;
struct S { int m; };
typedef S *T;
// Expressions.
T(a)->m = 7;
int(a)++; // expected-error {{expression is not assignable}}
__extension__ int(a)++; // expected-error {{expression is not assignable}}
__typeof(int)(a,5)<<a; // expected-error {{excess elements in scalar initializer}}
void(a), ++a;
if (int(a)+1) {}
for (int(a)+1;;) {} // expected-warning {{expression result unused}}
a = sizeof(int()+1);
a = sizeof(int(1));
typeof(int()+1) a2; // expected-error {{extension used}}
(int(1)); // expected-warning {{expression result unused}}
// type-id
(int())1; // expected-error {{C-style cast from 'int' to 'int ()' is not allowed}}
// Declarations.
int fd(T(a)); // expected-warning {{parentheses were disambiguated as a function declarator}}
T(*d)(int(p)); // expected-warning {{parentheses were disambiguated as a function declarator}} expected-note {{previous definition is here}}
T(d)[5]; // expected-error {{redefinition of 'd'}}
typeof(int[])(f) = { 1, 2 }; // expected-error {{extension used}}
void(b)(int);
int(d2) __attribute__(());
if (int(a)=1) {}
int(d3(int()));
}
class C { };
void fn(int(C)) { } // void fn(int(*fp)(C c)) { } expected-note{{candidate function}}
// not: void fn(int C);
int g(C);
void foo() {
fn(1); // expected-error {{no matching function}}
fn(g); // OK
}