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// Copyright Catch2 Authors
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE.txt or copy at
// https://www.boost.org/LICENSE_1_0.txt)
// SPDX-License-Identifier: BSL-1.0
#include <catch2/internal/catch_lazy_expr.hpp>
#include <catch2/internal/catch_decomposer.hpp>
namespace Catch {
auto operator << (std::ostream& os, LazyExpression const& lazyExpr) -> std::ostream& {
if (lazyExpr.m_isNegated)
os << '!';
if (lazyExpr) {
if (lazyExpr.m_isNegated && lazyExpr.m_transientExpression->isBinaryExpression())
os << '(' << *lazyExpr.m_transientExpression << ')';
else
os << *lazyExpr.m_transientExpression;
} else {
os << "{** error - unchecked empty expression requested **}";
}
return os;
}
} // namespace Catch
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