File: instantiation-order.cpp

package info (click to toggle)
llvm-toolchain-15 1%3A15.0.6-4
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,554,644 kB
  • sloc: cpp: 5,922,452; ansic: 1,012,136; asm: 674,362; python: 191,568; objc: 73,855; f90: 42,327; lisp: 31,913; pascal: 11,973; javascript: 10,144; sh: 9,421; perl: 7,447; ml: 5,527; awk: 3,523; makefile: 2,520; xml: 885; cs: 573; fortran: 567
file content (15 lines) | stat: -rw-r--r-- 526 bytes parent folder | download | duplicates (37) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
 
// RUN: %clang_cc1 -std=c++11 -verify %s

// From core issue 1227.

template <class T> struct A { using X = typename T::X; }; // expected-error {{no members}}
template <class T> typename T::X f(typename A<T>::X);
template <class T> void f(...) {}
template <class T> auto g(typename A<T>::X) -> typename T::X; // expected-note {{here}}
template <class T> void g(...) {}

void h()
{
  f<int>(0); // ok, SFINAE in return type
  g<int>(0); // not ok, substitution inside A<int> is a hard error // expected-note {{substituting}}
}