File: p1-0x.cpp

package info (click to toggle)
llvm-toolchain-18 1%3A18.1.8-18
  • links: PTS, VCS
  • area: main
  • in suites: trixie
  • size: 1,908,340 kB
  • sloc: cpp: 6,667,937; ansic: 1,440,452; asm: 883,619; python: 230,549; objc: 76,880; f90: 74,238; lisp: 35,989; pascal: 16,571; sh: 10,229; perl: 7,459; ml: 5,047; awk: 3,523; makefile: 2,987; javascript: 2,149; xml: 892; fortran: 649; cs: 573
file content (19 lines) | stat: -rw-r--r-- 846 bytes parent folder | download | duplicates (42) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
 
// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s

// If T is an lvalue reference type or an rvalue reference to function
// type, the result is an lvalue; if T is an rvalue reference to
// object type, the result is an xvalue;

unsigned int f(int);

template<typename T> T&& xvalue();
void test_classification(char *ptr) {
  int (&fr0)(int) = reinterpret_cast<int (&&)(int)>(f);
  int &&ir0 = reinterpret_cast<int &&>(*ptr);
  int &&ir1 = reinterpret_cast<int &&>(0); // expected-error {{rvalue to reference type}}
  int &&ir2 = reinterpret_cast<int &&>('a'); // expected-error {{rvalue to reference type}}
  int &&ir3 = reinterpret_cast<int &&>(xvalue<char>());
  // Per DR1268, reinterpret_cast can convert between lvalues and xvalues.
  int &ir4 = reinterpret_cast<int &>(xvalue<char>());
  int &&ir5 = reinterpret_cast<int &&>(*ptr);
}