| 16e2ba19dfffdcf9bba202eb8a27fd79e3d15303 |
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18-Jan-2017 |
Stephan T. Lavavej <stl@exchange.microsoft.com> |
[libcxx] [test] Fix comment typos, strip trailing whitespace.
No functional change, no code review.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@292434 91177308-0d34-0410-b5e6-96231b3b80d8
/external/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/default.pass.cpp
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| da1818a08c9676000c464402f634cb0e9340389d |
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21-Feb-2015 |
Eric Fiselier <eric@efcs.ca> |
[libc++] Try and prevent evaluation of `is_default_constructible` on tuples default constructor if it is not needed.
Summary:
Currently parts of the SFINAE on tuples default constructor always gets evaluated even when the default constructor is never called or instantiated. This can cause a hard compile error when a tuple is created with types that do not have a default constructor. Below is a self contained example using a pair like class. This code will not compile but probably should.
```
#include <type_traits>
template <class T>
struct IllFormedDefaultImp {
IllFormedDefaultImp(T x) : value(x) {}
constexpr IllFormedDefaultImp() {}
T value;
};
typedef IllFormedDefaultImp<int &> IllFormedDefault;
template <class T, class U>
struct pair
{
template <bool Dummy = true,
class = typename std::enable_if<
std::is_default_constructible<T>::value
&& std::is_default_constructible<U>::value
&& Dummy>::type
>
constexpr pair() : first(), second() {}
pair(T const & t, U const & u) : first(t), second(u) {}
T first;
U second;
};
int main()
{
int x = 1;
IllFormedDefault v(x);
pair<IllFormedDefault, IllFormedDefault> p(v, v);
}
```
One way to fix this is to use `Dummy` in a more involved way in the constructor SFINAE. The following patch fixes these sorts of hard compile errors for tuple.
Reviewers: mclow.lists, rsmith, K-ballo, EricWF
Reviewed By: EricWF
Subscribers: ldionne, cfe-commits
Differential Revision: http://reviews.llvm.org/D7569
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@230120 91177308-0d34-0410-b5e6-96231b3b80d8
/external/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/default.pass.cpp
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| f063052fe1d3c7a40de69795228a6334f956b9f9 |
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19-Feb-2015 |
Eric Fiselier <eric@efcs.ca> |
[libcxx] Mark most tuple tests UNSUPPORTED for c++03 and c++98.
Summary: No declaration for the type `tuple` is given in c++03 or c++98 modes. Mark all tests that use the actual `tuple` type as UNSUPPORTED.
Reviewers: jroelofs, mclow.lists, danalbert
Reviewed By: danalbert
Subscribers: cfe-commits
Differential Revision: http://reviews.llvm.org/D5956
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@229808 91177308-0d34-0410-b5e6-96231b3b80d8
/external/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/default.pass.cpp
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| a90c6dd46005b2b14de3bb889a8d03bb34bd3256 |
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20-Dec-2014 |
Eric Fiselier <eric@efcs.ca> |
Move test into test/std subdirectory.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@224658 91177308-0d34-0410-b5e6-96231b3b80d8
/external/libcxx/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/default.pass.cpp
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