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-rw-r--r--src/corelib/text/qlocale_tools_p.h125
1 files changed, 54 insertions, 71 deletions
diff --git a/src/corelib/text/qlocale_tools_p.h b/src/corelib/text/qlocale_tools_p.h
index f04c4512c0..9b02403ea4 100644
--- a/src/corelib/text/qlocale_tools_p.h
+++ b/src/corelib/text/qlocale_tools_p.h
@@ -1,41 +1,5 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the QtCore module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
+// Copyright (C) 2021 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QLOCALE_TOOLS_P_H
#define QLOCALE_TOOLS_P_H
@@ -62,46 +26,65 @@ enum StrayCharacterMode {
WhitespacesAllowed
};
-double qt_asciiToDouble(const char *num, int numLen, bool &ok, int &processed,
- StrayCharacterMode strayCharMode = TrailingJunkProhibited);
-void qt_doubleToAscii(double d, QLocaleData::DoubleForm form, int precision, char *buf, int bufSize,
+// API note: this function can't process a number with more than 2.1 billion digits
+[[nodiscard]] QSimpleParsedNumber<double>
+qt_asciiToDouble(const char *num, qsizetype numLen,
+ StrayCharacterMode strayCharMode = TrailingJunkProhibited);
+void qt_doubleToAscii(double d, QLocaleData::DoubleForm form, int precision,
+ char *buf, qsizetype bufSize,
bool &sign, int &length, int &decpt);
-QString qulltoa(qulonglong l, int base, const QStringView zero);
-Q_CORE_EXPORT QString qdtoa(qreal d, int *decpt, int *sign);
+[[nodiscard]] QString qulltoBasicLatin(qulonglong l, int base, bool negative);
+[[nodiscard]] QString qulltoa(qulonglong l, int base, const QStringView zero);
+[[nodiscard]] Q_CORE_EXPORT QString qdtoa(qreal d, int *decpt, int *sign);
+[[nodiscard]] QString qdtoBasicLatin(double d, QLocaleData::DoubleForm form,
+ int precision, bool uppercase);
+[[nodiscard]] QByteArray qdtoAscii(double d, QLocaleData::DoubleForm form,
+ int precision, bool uppercase);
-enum PrecisionMode {
- PMDecimalDigits = 0x01,
- PMSignificantDigits = 0x02,
- PMChopTrailingZeros = 0x03
-};
+[[nodiscard]] constexpr inline bool isZero(double d)
+{
+ return d == 0; // Amusingly, compilers do not grumble.
+}
+
+// Enough space for the digits before the decimal separator:
+[[nodiscard]] inline int wholePartSpace(double d)
+{
+ Q_ASSERT(d >= 0); // caller should call qAbs() if needed
+ // Optimize for numbers between -512k and 512k - otherwise, use the
+ // maximum number of digits in the whole number part of a double:
+ return d > (1 << 19) ? std::numeric_limits<double>::max_exponent10 + 1 : 6;
+}
+
+// Returns code-point of same kind (UCS2 or UCS4) as zero; digit is 0 through 9
+template <typename UcsInt>
+[[nodiscard]] inline UcsInt unicodeForDigit(uint digit, UcsInt zero)
+{
+ // Must match qlocale.cpp's NumberTokenizer's digit-digestion.
+ Q_ASSERT(digit < 10);
+ if (!digit)
+ return zero;
+
+ // See QTBUG-85409: Suzhou's digits are U+3007, U+3021, ..., U+3029
+ if (zero == u'\u3007')
+ return u'\u3020' + digit;
+ // In util/locale_database/ldml.py, LocaleScanner.numericData() asserts no
+ // other number system in CLDR has discontinuous digits.
+
+ return zero + digit;
+}
-QString &decimalForm(const QString &zero, const QString &decimal, const QString &group,
- QString &digits, int decpt, int precision,
- PrecisionMode pm,
- bool always_show_decpt,
- bool thousands_group);
-QString &exponentForm(const QString &zero, const QString &decimal, const QString &exponential,
- const QString &group, const QString &plus, const QString &minus,
- QString &digits, int decpt, int precision,
- PrecisionMode pm,
- bool always_show_decpt,
- bool leading_zero_in_exponent);
-
-inline bool isZero(double d)
+[[nodiscard]] Q_CORE_EXPORT double qstrntod(const char *s00, qsizetype len,
+ char const **se, bool *ok);
+[[nodiscard]] inline double qstrtod(const char *s00, char const **se, bool *ok)
{
- uchar *ch = (uchar *)&d;
- if (QSysInfo::ByteOrder == QSysInfo::BigEndian) {
- return !(ch[0] & 0x7F || ch[1] || ch[2] || ch[3] || ch[4] || ch[5] || ch[6] || ch[7]);
- } else {
- return !(ch[7] & 0x7F || ch[6] || ch[5] || ch[4] || ch[3] || ch[2] || ch[1] || ch[0]);
- }
+ qsizetype len = qsizetype(strlen(s00));
+ return qstrntod(s00, len, se, ok);
}
-Q_CORE_EXPORT double qstrtod(const char *s00, char const **se, bool *ok);
-Q_CORE_EXPORT double qstrntod(const char *s00, int len, char const **se, bool *ok);
-qlonglong qstrtoll(const char *nptr, const char **endptr, int base, bool *ok);
-qulonglong qstrtoull(const char *nptr, const char **endptr, int base, bool *ok);
+[[nodiscard]] Q_AUTOTEST_EXPORT
+QSimpleParsedNumber<qlonglong> qstrntoll(const char *nptr, qsizetype size, int base);
+[[nodiscard]] QSimpleParsedNumber<qulonglong> qstrntoull(const char *nptr, qsizetype size, int base);
QT_END_NAMESPACE
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-05 12:52:16 +0000