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++ // Copyright (C) 2024 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++
++ #ifndef QSCOPEDENVIRONMENTVARIABLE_H
++ #define QSCOPEDENVIRONMENTVARIABLE_H
++
++ //
++ // W A R N I N G
++ // -------------
++ //
++ // This file is not part of the Qt API. It exists purely as an
++ // implementation detail. This header file may change from version to
++ // version without notice, or even be removed.
++ //
++ // We mean it.
++ //
++
++ #include <QtCore/qbytearrayview.h>
++ #include <QtCore/qtenvironmentvariables.h>
++
++ struct QScopedEnvironmentVariable
++ {
++ QScopedEnvironmentVariable(const QScopedEnvironmentVariable &) = delete;
++ QScopedEnvironmentVariable(QScopedEnvironmentVariable &&) = delete;
++ QScopedEnvironmentVariable &operator=(const QScopedEnvironmentVariable &) = delete;
++ QScopedEnvironmentVariable &operator=(QScopedEnvironmentVariable &&) = delete;
++
++ QScopedEnvironmentVariable(const char *envvar, QByteArrayView name) : envvar{ envvar }
++ {
++ Q_ASSERT(envvar);
++ qputenv(envvar, name);
++ };
++
++ ~QScopedEnvironmentVariable() { qunsetenv(envvar); }
++
++ private:
++ const char *envvar;
++ };
++
++ #endif // QSCOPEDENVIRONMENTVARIABLE_H