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Move old test into test/libcxx, and implement new version of test for ostreambuf_iterator::failed. Fixes PR#37245. Thanks to Billy O'Neill for the bug report.

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@330955 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Marshall Clow
2018-04-26 16:16:45 +00:00
parent db0ba4480a
commit a5996e8dc9
2 changed files with 47 additions and 2 deletions
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32
test/libcxx/iterators/failed.pass.cpp Normal file
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@@ -0,0 +1,32 @@
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <iterator>
// class ostreambuf_iterator
// bool failed() const throw();
//
// Extension: constructing from NULL is UB; we just make it a failed iterator
#include <iterator>
#include <sstream>
#include <cassert>
int main()
{
{
std::ostreambuf_iterator<char> i(nullptr);
assert(i.failed());
}
{
std::ostreambuf_iterator<wchar_t> i(nullptr);
assert(i.failed());
}
}

17
test/std/iterators/stream.iterators/ostreambuf.iterator/ostreambuf.iter.ops/failed.pass.cpp
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@@ -17,14 +17,27 @@
#include <sstream>
#include <cassert>
template <typename Char, typename Traits = std::char_traits<Char> >
struct my_streambuf : public std::basic_streambuf<Char,Traits> {
typedef typename std::basic_streambuf<Char,Traits>::int_type int_type;
typedef typename std::basic_streambuf<Char,Traits>::char_type char_type;
my_streambuf() {}
int_type sputc(char_type) { return Traits::eof(); }
};
int main()
{
{
std::ostreambuf_iterator<char> i(nullptr);
my_streambuf<char> buf;
std::ostreambuf_iterator<char> i(&buf);
i = 'a';
assert(i.failed());
}
{
std::ostreambuf_iterator<wchar_t> i(nullptr);
my_streambuf<wchar_t> buf;
std::ostreambuf_iterator<wchar_t> i(&buf);
i = L'a';
assert(i.failed());
}
}