caio/clang-p2996
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[libc++] [P0935] [C++20] Eradicating unnecessarily explicit default constructors from the standard library.

Browse Source 
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/p0935r0.html

Reviewed By: ldionne, #libc

Differential Revision: https://reviews.llvm.org/D91292
This commit is contained in:
Marek Kurdej
2021-01-19 08:21:09 +01:00
parent 9cf511aa08
commit a11f8b1ad6
49 changed files with 1194 additions and 268 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
libcxx/test/std/input.output/string.streams/stringbuf/stringbuf.cons/default.pass.cpp
View File

@@ -11,12 +11,17 @@
// template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT> >
// class basic_stringbuf
// explicit basic_stringbuf(ios_base::openmode which = ios_base::in | ios_base::out);
// explicit basic_stringbuf(ios_base::openmode which = ios_base::in | ios_base::out); // before C++20
// basic_stringbuf() : basic_stringbuf(ios_base::in | ios_base::out) {} // C++20
// explicit basic_stringbuf(ios_base::openmode which); // C++20
#include <sstream>
#include <cassert>
#include "test_macros.h"
#if TEST_STD_VER >= 11
#include "test_convertible.h"
#endif
template<typename CharT>
struct testbuf
@@ -52,5 +57,13 @@ int main(int, char**)
buf.check();
}
return 0;
#if TEST_STD_VER >= 11
{
typedef std::stringbuf B;
static_assert(test_convertible<B>(), "");
static_assert(!test_convertible<B, std::ios_base::openmode>(), "");
}
#endif
return 0;
}