/**************************************************************************** ** ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). ** Contact: Nokia Corporation (qt-info@nokia.com) ** ** This file is part of the test suite module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** No Commercial Usage ** This file contains pre-release code and may not be distributed. ** You may use this file in accordance with the terms and conditions ** contained in the either Technology Preview License Agreement or the ** Beta Release License Agreement. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser ** General Public License version 2.1 as published by the Free Software ** Foundation and appearing in the file LICENSE.LGPL included in the ** packaging of this file. Please review the following information to ** ensure the GNU Lesser General Public License version 2.1 requirements ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. ** ** In addition, as a special exception, Nokia gives you certain ** additional rights. These rights are described in the Nokia Qt LGPL ** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this ** package. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 3.0 as published by the Free Software ** Foundation and appearing in the file LICENSE.GPL included in the ** packaging of this file. Please review the following information to ** ensure the GNU General Public License version 3.0 requirements will be ** met: http://www.gnu.org/copyleft/gpl.html. ** ** If you are unsure which license is appropriate for your use, please ** contact the sales department at http://qt.nokia.com/contact. ** $QT_END_LICENSE$ ** ****************************************************************************/ // Select one of the scenarios below #define SCENARIO 1 #if SCENARIO == 1 // this is the "no harm done" version. Only operator% is active, // with NO_CAST * defined #define P % #undef QT_USE_FAST_OPERATOR_PLUS #undef QT_USE_FAST_CONCATENATION #define QT_NO_CAST_FROM_ASCII #define QT_NO_CAST_TO_ASCII #endif #if SCENARIO == 2 // this is the "full" version. Operator+ is replaced by a QStringBuilder // based version // with NO_CAST * defined #define P + #define QT_USE_FAST_OPERATOR_PLUS #define QT_USE_FAST_CONCATENATION #define QT_NO_CAST_FROM_ASCII #define QT_NO_CAST_TO_ASCII #endif #if SCENARIO == 3 // this is the "no harm done" version. Only operator% is active, // with NO_CAST * _not_ defined #define P % #undef QT_USE_FAST_OPERATOR_PLUS #undef QT_USE_FAST_CONCATENATION #undef QT_NO_CAST_FROM_ASCII #undef QT_NO_CAST_TO_ASCII #endif #if SCENARIO == 4 // this is the "full" version. Operator+ is replaced by a QStringBuilder // based version // with NO_CAST * _not_ defined #define P + #define QT_USE_FAST_OPERATOR_PLUS #define QT_USE_FAST_CONCATENATION #undef QT_NO_CAST_FROM_ASCII #undef QT_NO_CAST_TO_ASCII #endif #include #include #include #include #include #include #define COMPARE(a, b) QCOMPARE(a, b) //#define COMPARE(a, b) #define SEP(s) qDebug() << "\n\n-------- " s " ---------"; #define LITERAL "some string literal" class tst_qstringbuilder : public QObject { Q_OBJECT public: tst_qstringbuilder() : l1literal(LITERAL), l1string(LITERAL), ba(LITERAL), string(l1string), stdstring(LITERAL), stringref(&string, 2, 10), achar('c'), r2(QLatin1String(LITERAL LITERAL)), r3(QLatin1String(LITERAL LITERAL LITERAL)), r4(QLatin1String(LITERAL LITERAL LITERAL LITERAL)), r5(QLatin1String(LITERAL LITERAL LITERAL LITERAL LITERAL)) {} public: enum { N = 10000 }; int run_traditional() { int s = 0; for (int i = 0; i < N; ++i) { #if 0 s += QString(l1string + l1string).size(); s += QString(l1string + l1string + l1string).size(); s += QString(l1string + l1string + l1string + l1string).size(); s += QString(l1string + l1string + l1string + l1string + l1string).size(); #endif s += QString(achar + l1string + achar).size(); } return s; } int run_builder() { int s = 0; for (int i = 0; i < N; ++i) { #if 0 s += QString(l1literal P l1literal).size(); s += QString(l1literal P l1literal P l1literal).size(); s += QString(l1literal P l1literal P l1literal P l1literal).size(); s += QString(l1literal P l1literal P l1literal P l1literal P l1literal).size(); #endif s += QString(achar % l1literal % achar).size(); } return s; } private slots: void separator_0() { qDebug() << "\nIn each block the QStringBuilder based result appear first " "(with a 'b_' prefix), QStringBased second ('q_' prefix), std::string " "last ('s_' prefix)\n"; } void separator_1() { SEP("literal + literal (builder first)"); } void b_2_l1literal() { QBENCHMARK { r = l1literal P l1literal; } COMPARE(r, r2); } #ifndef QT_NO_CAST_FROM_ASCII void b_l1literal_LITERAL() { QBENCHMARK { r = l1literal P LITERAL; } COMPARE(r, r2); } #endif void q_2_l1string() { QBENCHMARK { r = l1string + l1string; } COMPARE(r, r2); } void separator_2() { SEP("2 strings"); } void b_2_string() { QBENCHMARK { r = string P string; } COMPARE(r, r2); } void q_2_string() { QBENCHMARK { r = string + string; } COMPARE(r, r2); } void s_2_string() { QBENCHMARK { stdr = stdstring + stdstring; } COMPARE(stdr, stdstring + stdstring); } void separator_2c() { SEP("2 string refs"); } void b_2_stringref() { QBENCHMARK { r = stringref % stringref; } COMPARE(r, QString(stringref.toString() + stringref.toString())); } void q_2_stringref() { QBENCHMARK { r = stringref.toString() + stringref.toString(); } COMPARE(r, QString(stringref % stringref)); } void separator_2b() { SEP("3 strings"); } void b_3_string() { QBENCHMARK { r = string P string P string; } COMPARE(r, r3); } void q_3_string() { QBENCHMARK { r = string + string + string; } COMPARE(r, r3); } void s_3_string() { QBENCHMARK { stdr = stdstring + stdstring + stdstring; } COMPARE(stdr, stdstring + stdstring + stdstring); } void separator_2e() { SEP("4 strings"); } void b_4_string() { QBENCHMARK { r = string P string P string P string; } COMPARE(r, r4); } void q_4_string() { QBENCHMARK { r = string + string + string + string; } COMPARE(r, r4); } void s_4_string() { QBENCHMARK { stdr = stdstring + stdstring + stdstring + stdstring; } COMPARE(stdr, stdstring + stdstring + stdstring + stdstring); } void separator_2a() { SEP("string + literal (builder first)"); } void b_string_l1literal() { QBENCHMARK { r = string % l1literal; } COMPARE(r, r2); } #ifndef QT_NO_CAST_FROM_ASCII void b_string_LITERAL() { QBENCHMARK { r = string P LITERAL; } COMPARE(r, r2); } void b_LITERAL_string() { QBENCHMARK { r = LITERAL P string; } COMPARE(r, r2); } #endif void b_string_l1string() { QBENCHMARK { r = string P l1string; } COMPARE(r, r2); } void q_string_l1literal() { QBENCHMARK { r = string + l1string; } COMPARE(r, r2); } void q_string_l1string() { QBENCHMARK { r = string + l1string; } COMPARE(r, r2); } void s_LITERAL_string() { QBENCHMARK { stdr = LITERAL + stdstring; } COMPARE(stdr, stdstring + stdstring); } void separator_3() { SEP("3 literals"); } void b_3_l1literal() { QBENCHMARK { r = l1literal P l1literal P l1literal; } COMPARE(r, r3); } void q_3_l1string() { QBENCHMARK { r = l1string + l1string + l1string; } COMPARE(r, r3); } void s_3_l1string() { QBENCHMARK { stdr = stdstring + LITERAL + LITERAL; } COMPARE(stdr, stdstring + stdstring + stdstring); } void separator_4() { SEP("4 literals"); } void b_4_l1literal() { QBENCHMARK { r = l1literal P l1literal P l1literal P l1literal; } COMPARE(r, r4); } void q_4_l1string() { QBENCHMARK { r = l1string + l1string + l1string + l1string; } COMPARE(r, r4); } void separator_5() { SEP("5 literals"); } void b_5_l1literal() { QBENCHMARK { r = l1literal P l1literal P l1literal P l1literal P l1literal; } COMPARE(r, r5); } void q_5_l1string() { QBENCHMARK { r = l1string + l1string + l1string + l1string + l1string; } COMPARE(r, r5); } void separator_6() { SEP("4 chars"); } void b_string_4_char() { QBENCHMARK { r = string + achar + achar + achar + achar; } COMPARE(r, QString(string P achar P achar P achar P achar)); } void q_string_4_char() { QBENCHMARK { r = string + achar + achar + achar + achar; } COMPARE(r, QString(string P achar P achar P achar P achar)); } void s_string_4_char() { QBENCHMARK { stdr = stdstring + 'c' + 'c' + 'c' + 'c'; } COMPARE(stdr, stdstring + 'c' + 'c' + 'c' + 'c'); } void separator_7() { SEP("char + string + char"); } void b_char_string_char() { QBENCHMARK { r = achar + string + achar; } COMPARE(r, QString(achar P string P achar)); } void q_char_string_char() { QBENCHMARK { r = achar + string + achar; } COMPARE(r, QString(achar P string P achar)); } void s_char_string_char() { QBENCHMARK { stdr = 'c' + stdstring + 'c'; } COMPARE(stdr, 'c' + stdstring + 'c'); } void separator_8() { SEP("string.arg"); } void b_string_arg() { const QString pattern = l1string + QString::fromLatin1("%1") + l1string; QBENCHMARK { r = l1literal P string P l1literal; } COMPARE(r, r3); } void q_string_arg() { const QString pattern = l1string + QLatin1String("%1") + l1string; QBENCHMARK { r = pattern.arg(string); } COMPARE(r, r3); } void q_bytearray_arg() { QByteArray result; QBENCHMARK { result = ba + ba + ba; } } void separator_9() { SEP("QString::reserve()"); } void b_reserve() { QBENCHMARK { r.clear(); r = string P string P string P string; } COMPARE(r, r4); } void b_reserve_lit() { QBENCHMARK { r.clear(); r = string P l1literal P string P string; } COMPARE(r, r4); } void s_reserve() { QBENCHMARK { r.clear(); r.reserve(string.size() + string.size() + string.size() + string.size()); r += string; r += string; r += string; r += string; } COMPARE(r, r4); } void s_reserve_lit() { QBENCHMARK { r.clear(); //r.reserve(string.size() + qstrlen(l1string.latin1()) // + string.size() + string.size()); r.reserve(1024); r += string; r += l1string; r += string; r += string; } COMPARE(r, r4); } private: const QLatin1Literal l1literal; const QLatin1String l1string; const QByteArray ba; const QString string; const std::string stdstring; const QStringRef stringref; const QLatin1Char achar; const QString r2, r3, r4, r5; // short cuts for results QString r; std::string stdr; }; //void operator%(QString, int) {} int main(int argc, char *argv[]) { //qDebug() << (QString("xx") * QLatin1String("y")).toString(); //42 % 3; // Sanity test, should always work. //QString("x") % 2; // Sanity test, should only compile when the // operator%(QString, int) is visible. if (argc == 2 && (QLatin1String(argv[1]) == QLatin1String("--run-builder") || QLatin1String(argv[1]) == QLatin1String("-b"))) { tst_qstringbuilder test; return test.run_builder(); } if (argc == 2 && (QLatin1String(argv[1]) == QLatin1String("--run-traditional") || QLatin1String(argv[1]) == QLatin1String("-t"))) { tst_qstringbuilder test; return test.run_traditional(); } if (argc == 1) { QCoreApplication app(argc, argv); QStringList args = app.arguments(); tst_qstringbuilder test; return QTest::qExec(&test, argc, argv); } qDebug() << "Usage: " << argv[0] << " [--run-builder|-r|--run-traditional|-t]"; } #include "main.moc"