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// Copyright Catch2 Authors
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at
// https://www.boost.org/LICENSE_1_0.txt)
// SPDX-License-Identifier: BSL-1.0
#ifndef CATCH_STREAM_HPP_INCLUDED
#define CATCH_STREAM_HPP_INCLUDED
#include <catch2/internal/catch_noncopyable.hpp>
#include <iosfwd>
#include <cstddef>
#include <ostream>
namespace Catch {
std::ostream& cout();
std::ostream& cerr();
std::ostream& clog();
class StringRef;
struct IStream {
virtual ~IStream();
virtual std::ostream& stream() const = 0;
};
auto makeStream( StringRef const &filename ) -> IStream const*;
class ReusableStringStream : Detail::NonCopyable {
std::size_t m_index;
std::ostream* m_oss;
public:
ReusableStringStream();
~ReusableStringStream();
//! Returns the serialized state
std::string str() const;
//! Sets internal state to `str`
void str(std::string const& str);
#if defined(__GNUC__) && !defined(__clang__)
#pragma GCC diagnostic push
// Old versions of GCC do not understand -Wnonnull-compare
#pragma GCC diagnostic ignored "-Wpragmas"
// Streaming a function pointer triggers Waddress and Wnonnull-compare
// on GCC, because it implicitly converts it to bool and then decides
// that the check it uses (a? true : false) is tautological and cannot
// be null...
#pragma GCC diagnostic ignored "-Waddress"
#pragma GCC diagnostic ignored "-Wnonnull-compare"
#endif
template<typename T>
auto operator << ( T const& value ) -> ReusableStringStream& {
*m_oss << value;
return *this;
}
#if defined(__GNUC__) && !defined(__clang__)
#pragma GCC diagnostic pop
#endif
auto get() -> std::ostream& { return *m_oss; }
};
}
#endif // CATCH_STREAM_HPP_INCLUDED
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