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QStringView: add some relational operators

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This is not the complete set, since we don't yet have qCompareStrings()
for UTF-8 strings, but relational operators are so important that we
need _something_ before we have _everything_.

Change-Id: I213b741e5b91f09aa1f0c6c21f64d764fceb27a1
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
Reviewed-by: Anton Kudryavtsev <antkudr@mail.ru>
This commit is contained in:
Marc Mutz 2017-03-29 20:26:44 +02:00
parent b4c85e8a2a
commit a1421e4787
1 changed files with 38 additions and 0 deletions
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38
src/corelib/tools/qstring.h
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@ -1706,6 +1706,44 @@ inline bool operator> (QLatin1String lhs, QChar rhs) Q_DECL_NOTHROW { return r
inline bool operator<=(QLatin1String lhs, QChar rhs) Q_DECL_NOTHROW { return !(rhs < lhs); }
inline bool operator>=(QLatin1String lhs, QChar rhs) Q_DECL_NOTHROW { return !(rhs > lhs); }
// QStringView <> QStringView
inline bool operator==(QStringView lhs, QStringView rhs) Q_DECL_NOTHROW { return lhs.size() == rhs.size() && qCompareStrings(lhs, rhs) == 0; }
inline bool operator!=(QStringView lhs, QStringView rhs) Q_DECL_NOTHROW { return !(lhs == rhs); }
inline bool operator< (QStringView lhs, QStringView rhs) Q_DECL_NOTHROW { return qCompareStrings(lhs, rhs) < 0; }
inline bool operator<=(QStringView lhs, QStringView rhs) Q_DECL_NOTHROW { return qCompareStrings(lhs, rhs) <= 0; }
inline bool operator> (QStringView lhs, QStringView rhs) Q_DECL_NOTHROW { return qCompareStrings(lhs, rhs) > 0; }
inline bool operator>=(QStringView lhs, QStringView rhs) Q_DECL_NOTHROW { return qCompareStrings(lhs, rhs) >= 0; }
// QStringView <> QChar
inline bool operator==(QStringView lhs, QChar rhs) Q_DECL_NOTHROW { return lhs == QStringView(&rhs, 1); }
inline bool operator!=(QStringView lhs, QChar rhs) Q_DECL_NOTHROW { return lhs != QStringView(&rhs, 1); }
inline bool operator< (QStringView lhs, QChar rhs) Q_DECL_NOTHROW { return lhs < QStringView(&rhs, 1); }
inline bool operator<=(QStringView lhs, QChar rhs) Q_DECL_NOTHROW { return lhs <= QStringView(&rhs, 1); }
inline bool operator> (QStringView lhs, QChar rhs) Q_DECL_NOTHROW { return lhs > QStringView(&rhs, 1); }
inline bool operator>=(QStringView lhs, QChar rhs) Q_DECL_NOTHROW { return lhs >= QStringView(&rhs, 1); }
inline bool operator==(QChar lhs, QStringView rhs) Q_DECL_NOTHROW { return QStringView(&lhs, 1) == rhs; }
inline bool operator!=(QChar lhs, QStringView rhs) Q_DECL_NOTHROW { return QStringView(&lhs, 1) != rhs; }
inline bool operator< (QChar lhs, QStringView rhs) Q_DECL_NOTHROW { return QStringView(&lhs, 1) < rhs; }
inline bool operator<=(QChar lhs, QStringView rhs) Q_DECL_NOTHROW { return QStringView(&lhs, 1) <= rhs; }
inline bool operator> (QChar lhs, QStringView rhs) Q_DECL_NOTHROW { return QStringView(&lhs, 1) > rhs; }
inline bool operator>=(QChar lhs, QStringView rhs) Q_DECL_NOTHROW { return QStringView(&lhs, 1) >= rhs; }
// QStringView <> QLatin1String
inline bool operator==(QStringView lhs, QLatin1String rhs) Q_DECL_NOTHROW { return lhs.size() == rhs.size() && qCompareStrings(lhs, rhs) == 0; }
inline bool operator!=(QStringView lhs, QLatin1String rhs) Q_DECL_NOTHROW { return !(lhs == rhs); }
inline bool operator< (QStringView lhs, QLatin1String rhs) Q_DECL_NOTHROW { return qCompareStrings(lhs, rhs) < 0; }
inline bool operator<=(QStringView lhs, QLatin1String rhs) Q_DECL_NOTHROW { return qCompareStrings(lhs, rhs) <= 0; }
inline bool operator> (QStringView lhs, QLatin1String rhs) Q_DECL_NOTHROW { return qCompareStrings(lhs, rhs) > 0; }
inline bool operator>=(QStringView lhs, QLatin1String rhs) Q_DECL_NOTHROW { return qCompareStrings(lhs, rhs) >= 0; }
inline bool operator==(QLatin1String lhs, QStringView rhs) Q_DECL_NOTHROW { return lhs.size() == rhs.size() && qCompareStrings(lhs, rhs) == 0; }
inline bool operator!=(QLatin1String lhs, QStringView rhs) Q_DECL_NOTHROW { return !(lhs == rhs); }
inline bool operator< (QLatin1String lhs, QStringView rhs) Q_DECL_NOTHROW { return qCompareStrings(lhs, rhs) < 0; }
inline bool operator<=(QLatin1String lhs, QStringView rhs) Q_DECL_NOTHROW { return qCompareStrings(lhs, rhs) <= 0; }
inline bool operator> (QLatin1String lhs, QStringView rhs) Q_DECL_NOTHROW { return qCompareStrings(lhs, rhs) > 0; }
inline bool operator>=(QLatin1String lhs, QStringView rhs) Q_DECL_NOTHROW { return qCompareStrings(lhs, rhs) >= 0; }
#if !defined(QT_NO_CAST_FROM_ASCII) && !defined(QT_RESTRICTED_CAST_FROM_ASCII)
// QStringRef <> QByteArray
inline QT_ASCII_CAST_WARN bool operator==(const QStringRef &lhs, const QByteArray &rhs) { return lhs.compare(rhs) == 0; }