diff options
Diffstat (limited to 'src/corelib/tools/qstring.cpp')
| -rw-r--r-- | src/corelib/tools/qstring.cpp | 109 |
1 files changed, 59 insertions, 50 deletions
diff --git a/src/corelib/tools/qstring.cpp b/src/corelib/tools/qstring.cpp index b6731cffcd..d3a6851e2c 100644 --- a/src/corelib/tools/qstring.cpp +++ b/src/corelib/tools/qstring.cpp @@ -7104,8 +7104,8 @@ QString QString::vasprintf(const char *cformat, va_list ap) base, which is 10 by default and must be between 2 and 36, or 0. Returns 0 if the conversion fails. - If a conversion error occurs, *\a{ok} is set to \c false; otherwise - *\a{ok} is set to \c true. + If \a ok is not \c nullptr, failure is reported by setting *\a{ok} + to \c false, and success by setting *\a{ok} to \c true. If \a base is 0, the C language convention is used: If the string begins with "0x", base 16 is used; if the string begins with "0", @@ -7146,8 +7146,8 @@ qlonglong QString::toIntegral_helper(const QChar *data, int len, bool *ok, int b base, which is 10 by default and must be between 2 and 36, or 0. Returns 0 if the conversion fails. - If a conversion error occurs, *\a{ok} is set to \c false; otherwise - *\a{ok} is set to \c true. + If \a ok is not \c nullptr, failure is reported by setting *\a{ok} + to \c false, and success by setting *\a{ok} to \c true. If \a base is 0, the C language convention is used: If the string begins with "0x", base 16 is used; if the string begins with "0", @@ -7190,8 +7190,8 @@ qulonglong QString::toIntegral_helper(const QChar *data, uint len, bool *ok, int base, which is 10 by default and must be between 2 and 36, or 0. Returns 0 if the conversion fails. - If a conversion error occurs, *\a{ok} is set to \c false; otherwise - *\a{ok} is set to \c true. + If \a ok is not \c nullptr, failure is reported by setting *\a{ok} + to \c false, and success by setting *\a{ok} to \c true. If \a base is 0, the C language convention is used: If the string begins with "0x", base 16 is used; if the string begins with "0", @@ -7221,8 +7221,8 @@ long QString::toLong(bool *ok, int base) const base, which is 10 by default and must be between 2 and 36, or 0. Returns 0 if the conversion fails. - If a conversion error occurs, *\a{ok} is set to \c false; otherwise - *\a{ok} is set to \c true. + If \a ok is not \c nullptr, failure is reported by setting *\a{ok} + to \c false, and success by setting *\a{ok} to \c true. If \a base is 0, the C language convention is used: If the string begins with "0x", base 16 is used; if the string begins with "0", @@ -7251,8 +7251,8 @@ ulong QString::toULong(bool *ok, int base) const base, which is 10 by default and must be between 2 and 36, or 0. Returns 0 if the conversion fails. - If a conversion error occurs, *\a{ok} is set to \c false; otherwise - *\a{ok} is set to \c true. + If \a ok is not \c nullptr, failure is reported by setting *\a{ok} + to \c false, and success by setting *\a{ok} to \c true. If \a base is 0, the C language convention is used: If the string begins with "0x", base 16 is used; if the string begins with "0", @@ -7280,8 +7280,8 @@ int QString::toInt(bool *ok, int base) const base, which is 10 by default and must be between 2 and 36, or 0. Returns 0 if the conversion fails. - If a conversion error occurs, *\a{ok} is set to \c false; otherwise - *\a{ok} is set to \c true. + If \a ok is not \c nullptr, failure is reported by setting *\a{ok} + to \c false, and success by setting *\a{ok} to \c true. If \a base is 0, the C language convention is used: If the string begins with "0x", base 16 is used; if the string begins with "0", @@ -7309,8 +7309,8 @@ uint QString::toUInt(bool *ok, int base) const base, which is 10 by default and must be between 2 and 36, or 0. Returns 0 if the conversion fails. - If a conversion error occurs, *\a{ok} is set to \c false; otherwise - *\a{ok} is set to \c true. + If \a ok is not \c nullptr, failure is reported by setting *\a{ok} + to \c false, and success by setting *\a{ok} to \c true. If \a base is 0, the C language convention is used: If the string begins with "0x", base 16 is used; if the string begins with "0", @@ -7338,8 +7338,8 @@ short QString::toShort(bool *ok, int base) const base, which is 10 by default and must be between 2 and 36, or 0. Returns 0 if the conversion fails. - If a conversion error occurs, *\a{ok} is set to \c false; otherwise - *\a{ok} is set to \c true. + If \a ok is not \c nullptr, failure is reported by setting *\a{ok} + to \c false, and success by setting *\a{ok} to \c true. If \a base is 0, the C language convention is used: If the string begins with "0x", base 16 is used; if the string begins with "0", @@ -7368,8 +7368,8 @@ ushort QString::toUShort(bool *ok, int base) const Returns 0.0 if the conversion fails. - If a conversion error occurs, \c{*}\a{ok} is set to \c false; - otherwise \c{*}\a{ok} is set to \c true. + If \a ok is not \c nullptr, failure is reported by setting *\a{ok} + to \c false, and success by setting *\a{ok} to \c true. \snippet qstring/main.cpp 66 @@ -7404,21 +7404,30 @@ double QString::toDouble(bool *ok) const /*! Returns the string converted to a \c float value. - If a conversion error occurs, *\a{ok} is set to \c false; otherwise - *\a{ok} is set to \c true. Returns 0.0 if the conversion fails. + Returns 0.0 if the conversion fails. - This function ignores leading and trailing whitespace. + If \a ok is not \c nullptr, failure is reported by setting *\a{ok} + to \c false, and success by setting *\a{ok} to \c true. + + \warning The QString content may only contain valid numerical characters + which includes the plus/minus sign, the characters g and e used in scientific + notation, and the decimal point. Including the unit or additional characters + leads to a conversion error. The string conversion will always happen in the 'C' locale. For locale dependent conversion use QLocale::toFloat() + For historical reasons, this function does not handle + thousands group separators. If you need to convert such numbers, + use QLocale::toFloat(). + Example: \snippet qstring/main.cpp 71 This function ignores leading and trailing whitespace. - \sa number(), toDouble(), toInt(), QLocale::toFloat() + \sa number(), toDouble(), toInt(), QLocale::toFloat(), trimmed() */ float QString::toFloat(bool *ok) const @@ -7611,13 +7620,12 @@ QString QString::number(qulonglong n, int base) QString QString::number(double n, char f, int prec) { QLocaleData::DoubleForm form = QLocaleData::DFDecimal; - uint flags = 0; + uint flags = QLocaleData::ZeroPadExponent; if (qIsUpper(f)) - flags = QLocaleData::CapitalEorX; - f = qToLower(f); + flags |= QLocaleData::CapitalEorX; - switch (f) { + switch (qToLower(f)) { case 'f': form = QLocaleData::DFDecimal; break; @@ -8676,14 +8684,13 @@ QString QString::arg(double a, int fieldWidth, char fmt, int prec, QChar fillCha unsigned flags = QLocaleData::NoFlags; if (fillChar == QLatin1Char('0')) - flags = QLocaleData::ZeroPadded; + flags |= QLocaleData::ZeroPadded; if (qIsUpper(fmt)) flags |= QLocaleData::CapitalEorX; - fmt = qToLower(fmt); QLocaleData::DoubleForm form = QLocaleData::DFDecimal; - switch (fmt) { + switch (qToLower(fmt)) { case 'f': form = QLocaleData::DFDecimal; break; @@ -8702,7 +8709,7 @@ QString QString::arg(double a, int fieldWidth, char fmt, int prec, QChar fillCha QString arg; if (d.occurrences > d.locale_occurrences) - arg = QLocaleData::c()->doubleToString(a, prec, form, fieldWidth, flags); + arg = QLocaleData::c()->doubleToString(a, prec, form, fieldWidth, flags | QLocaleData::ZeroPadExponent); QString locale_arg; if (d.locale_occurrences > 0) { @@ -11772,8 +11779,8 @@ QStringRef QStringRef::trimmed() const base, which is 10 by default and must be between 2 and 36, or 0. Returns 0 if the conversion fails. - If a conversion error occurs, *\a{ok} is set to \c false; otherwise - *\a{ok} is set to \c true. + If \a ok is not \c nullptr, failure is reported by setting *\a{ok} + to \c false, and success by setting *\a{ok} to \c true. If \a base is 0, the C language convention is used: If the string begins with "0x", base 16 is used; if the string begins with "0", @@ -11797,8 +11804,8 @@ qint64 QStringRef::toLongLong(bool *ok, int base) const base, which is 10 by default and must be between 2 and 36, or 0. Returns 0 if the conversion fails. - If a conversion error occurs, *\a{ok} is set to \c false; otherwise - *\a{ok} is set to \c true. + If \a ok is not \c nullptr, failure is reported by setting *\a{ok} + to \c false, and success by setting *\a{ok} to \c true. If \a base is 0, the C language convention is used: If the string begins with "0x", base 16 is used; if the string begins with "0", @@ -11824,8 +11831,8 @@ quint64 QStringRef::toULongLong(bool *ok, int base) const base, which is 10 by default and must be between 2 and 36, or 0. Returns 0 if the conversion fails. - If a conversion error occurs, *\a{ok} is set to \c false; otherwise - *\a{ok} is set to \c true. + If \a ok is not \c nullptr, failure is reported by setting *\a{ok} + to \c false, and success by setting *\a{ok} to \c true. If \a base is 0, the C language convention is used: If the string begins with "0x", base 16 is used; if the string begins with "0", @@ -11851,8 +11858,8 @@ long QStringRef::toLong(bool *ok, int base) const base, which is 10 by default and must be between 2 and 36, or 0. Returns 0 if the conversion fails. - If a conversion error occurs, *\a{ok} is set to \c false; otherwise - *\a{ok} is set to \c true. + If \a ok is not \c nullptr, failure is reported by setting *\a{ok} + to \c false, and success by setting *\a{ok} to \c true. If \a base is 0, the C language convention is used: If the string begins with "0x", base 16 is used; if the string begins with "0", @@ -11877,8 +11884,8 @@ ulong QStringRef::toULong(bool *ok, int base) const base, which is 10 by default and must be between 2 and 36, or 0. Returns 0 if the conversion fails. - If a conversion error occurs, *\a{ok} is set to \c false; otherwise - *\a{ok} is set to \c true. + If \a ok is not \c nullptr, failure is reported by setting *\a{ok} + to \c false, and success by setting *\a{ok} to \c true. If \a base is 0, the C language convention is used: If the string begins with "0x", base 16 is used; if the string begins with "0", @@ -11902,8 +11909,8 @@ int QStringRef::toInt(bool *ok, int base) const base, which is 10 by default and must be between 2 and 36, or 0. Returns 0 if the conversion fails. - If a conversion error occurs, *\a{ok} is set to \c false; otherwise - *\a{ok} is set to \c true. + If \a ok is not \c nullptr, failure is reported by setting *\a{ok} + to \c false, and success by setting *\a{ok} to \c true. If \a base is 0, the C language convention is used: If the string begins with "0x", base 16 is used; if the string begins with "0", @@ -11927,8 +11934,8 @@ uint QStringRef::toUInt(bool *ok, int base) const base, which is 10 by default and must be between 2 and 36, or 0. Returns 0 if the conversion fails. - If a conversion error occurs, *\a{ok} is set to \c false; otherwise - *\a{ok} is set to \c true. + If \a ok is not \c nullptr, failure is reported by setting *\a{ok} + to \c false, and success by setting *\a{ok} to \c true. If \a base is 0, the C language convention is used: If the string begins with "0x", base 16 is used; if the string begins with "0", @@ -11952,8 +11959,8 @@ short QStringRef::toShort(bool *ok, int base) const base, which is 10 by default and must be between 2 and 36, or 0. Returns 0 if the conversion fails. - If a conversion error occurs, *\a{ok} is set to \c false; otherwise - *\a{ok} is set to \c true. + If \a ok is not \c nullptr, failure is reported by setting *\a{ok} + to \c false, and success by setting *\a{ok} to \c true. If \a base is 0, the C language convention is used: If the string begins with "0x", base 16 is used; if the string begins with "0", @@ -11978,8 +11985,8 @@ ushort QStringRef::toUShort(bool *ok, int base) const Returns 0.0 if the conversion fails. - If a conversion error occurs, \c{*}\a{ok} is set to \c false; - otherwise \c{*}\a{ok} is set to \c true. + If \a ok is not \c nullptr, failure is reported by setting *\a{ok} + to \c false, and success by setting *\a{ok} to \c true. The string conversion will always happen in the 'C' locale. For locale dependent conversion use QLocale::toDouble() @@ -12001,8 +12008,10 @@ double QStringRef::toDouble(bool *ok) const /*! Returns the string converted to a \c float value. - If a conversion error occurs, *\a{ok} is set to \c false; otherwise - *\a{ok} is set to \c true. Returns 0.0 if the conversion fails. + Returns 0.0 if the conversion fails. + + If \a ok is not \c nullptr, failure is reported by setting *\a{ok} + to \c false, and success by setting *\a{ok} to \c true. The string conversion will always happen in the 'C' locale. For locale dependent conversion use QLocale::toFloat() |