File: no-rtti.cpp

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 995,808 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (29 lines) | stat: -rw-r--r-- 483 bytes parent folder | download | duplicates (8)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
// RUN: %clang_cc1 -fsyntax-only -verify -fno-rtti %s

namespace std {
  class type_info;
}

void f()
{
  (void)typeid(int); // expected-error {{use of typeid requires -frtti}}
}

namespace {
struct A {
  virtual ~A(){};
};

struct B : public A {
  B() : A() {}
};
}

bool isa_B(A *a) {
  return dynamic_cast<B *>(a) != 0; // expected-error {{use of dynamic_cast requires -frtti}}
}

void* getMostDerived(A* a) {
  // This cast does not use RTTI.
  return dynamic_cast<void *>(a);
}