File: p2-cxx0x.cpp

package info (click to toggle)
llvm-toolchain-snapshot 1%3A22~%2B%2B20250731080150%2Bbe449d6b6587-1~exp1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 2,250,472 kB
  • sloc: cpp: 7,641,756; ansic: 1,439,220; asm: 1,072,591; python: 253,178; f90: 95,173; objc: 70,722; lisp: 44,365; pascal: 18,720; sh: 10,051; ml: 5,111; perl: 4,720; awk: 3,523; makefile: 3,397; javascript: 2,272; xml: 892; fortran: 783
file content (27 lines) | stat: -rw-r--r-- 1,029 bytes parent folder | download | duplicates (14)
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
// RUN: %clang_cc1 -fsyntax-only -verify %s -std=c++11

template<typename T>
struct only {
  only(T);
  template<typename U> only(U) = delete;
};

void f() {
  only<const int*> p = new const auto (0);
  only<double*> q = new (auto) (0.0);
  only<char*> r = new auto {'a'};

  new auto; // expected-error{{new expression for type 'auto' requires a constructor argument}}
  new (const auto)(); // expected-error{{new expression for type 'const auto' requires a constructor argument}}
  new (auto) (1,2,3); // expected-error{{new expression for type 'auto' contains multiple constructor arguments}}
  new auto {}; // expected-error{{new expression for type 'auto' requires a constructor argument}}
  new auto {1,2,3}; // expected-error{{new expression for type 'auto' contains multiple constructor arguments}}
  new auto ({1,2,3}); // expected-error{{cannot deduce actual type for 'auto' from parenthesized initializer list}}
}

void p2example() {
  only<int*> r = new auto(1);
  auto x = new auto('a');

  only<char*> testX = x;
}