File: p1-0x.cpp

package info (click to toggle)
llvm-toolchain-7 1%3A7.0.1-8~deb9u3
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 733,456 kB
  • sloc: cpp: 3,776,651; ansic: 633,271; asm: 350,301; python: 142,716; objc: 107,612; sh: 22,626; lisp: 11,056; perl: 7,999; pascal: 6,742; ml: 5,537; awk: 3,536; makefile: 2,557; cs: 2,027; xml: 841; ruby: 156
file content (19 lines) | stat: -rw-r--r-- 846 bytes parent folder | download | duplicates (50)
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);
}