| -rw-r--r-- | library/quuid.cpp | 99 |
1 files changed, 90 insertions, 9 deletions
diff --git a/library/quuid.cpp b/library/quuid.cpp index 46fd816..36469a8 100644 --- a/library/quuid.cpp +++ b/library/quuid.cpp @@ -50,9 +50,11 @@ \fn QUuid::QUuid( const QUuid &orig ) Creates a copy of the QUuid \a orig. */ + #ifndef QT_NO_QUUID_STRING + /*! Creates a QUuid object from the string \a text. Right now, the function can only convert the format {12345678-1234-1234-1234-123456789ABC} and will create the null UUID when the conversion fails. @@ -62,42 +64,49 @@ QUuid::QUuid( const QString &text ) bool ok; QString temp = text.upper(); data1 = temp.mid( 1, 8 ).toULong( &ok, 16 ); - if ( !ok ) { + if ( !ok ) + { *this = QUuid(); return; } data2 = temp.mid( 10, 4 ).toUInt( &ok, 16 ); - if ( !ok ) { + if ( !ok ) + { *this = QUuid(); return; } data3 = temp.mid( 15, 4 ).toUInt( &ok, 16 ); - if ( !ok ) { + if ( !ok ) + { *this = QUuid(); return; } data4[0] = temp.mid( 20, 2 ).toUInt( &ok, 16 ); - if ( !ok ) { + if ( !ok ) + { *this = QUuid(); return; } data4[1] = temp.mid( 22, 2 ).toUInt( &ok, 16 ); - if ( !ok ) { + if ( !ok ) + { *this = QUuid(); return; } - for ( int i = 2; i<8; i++ ) { + for ( int i = 2; i<8; i++ ) + { data4[i] = temp.mid( 25 + (i-2)*2, 2 ).toUShort( &ok, 16 ); - if ( !ok ) { + if ( !ok ) + { *this = QUuid(); return; } } } -#endif + /*! \fn QUuid QUuid::operator=(const QUuid &uuid ) Assigns the value of \a uuid to this QUuid object. @@ -113,9 +122,9 @@ QUuid::QUuid( const QString &text ) \fn bool QUuid::operator!=(const QUuid &other) const Returns TRUE if this QUuid and the \a other QUuid are different, otherwise returns FALSE. */ -#ifndef QT_NO_QUUID_STRING + /*! QString QUuid::toString() const Returns a string in {12345678-1234-1234-1234-123456789ABC} format. @@ -134,8 +143,9 @@ QString QUuid::toString() const return result + "}"; } #endif + /*! Returns TRUE if this is the null UUID {00000000-0000-0000-0000-000000000000}, otherwise returns FALSE. */ bool QUuid::isNull() const @@ -143,4 +153,75 @@ bool QUuid::isNull() const return data4[0] == 0 && data4[1] == 0 && data4[2] == 0 && data4[3] == 0 && data4[4] == 0 && data4[5] == 0 && data4[6] == 0 && data4[7] == 0 && data1 == 0 && data2 == 0 && data3 == 0; } + + +/*! + \fn QUuid::Variant QUuid::variant() const + + Returns the variant of the UUID. + The null UUID is considered to be of an unknown variant. + + \sa version() +*/ +QUuid::Variant QUuid::variant() const +{ + if ( isNull() ) + return VarUnknown; + // Check the 3 MSB of data4[0] + if ( (data4[0] & 0x80) == 0x00 ) return NCS; + else if ( (data4[0] & 0xC0) == 0x80 ) return DCE; + else if ( (data4[0] & 0xE0) == 0xC0 ) return Microsoft; + else if ( (data4[0] & 0xE0) == 0xE0 ) return Reserved; + return VarUnknown; +} + +/*! + \fn bool QUuid::operator<(const QUuid &other) const + + Returns TRUE if this QUuid is of the same variant, + and lexicographically before the \a other QUuid; + otherwise returns FALSE. + + \sa variant() +*/ +#define ISLESS(f1, f2) if (f1!=f2) return (f1<f2); +bool QUuid::operator<(const QUuid &other ) const +{ + if ( variant() != other.variant() ) + return FALSE; + + ISLESS( data1, other.data1 ); + ISLESS( data2, other.data2 ); + ISLESS( data3, other.data3 ); + for ( int n = 0; n < 8; n++ ) + { + ISLESS( data4[n], other.data4[n] ); + } + return FALSE; +} + +/*! + \fn bool QUuid::operator>(const QUuid &other) const + + Returns TRUE if this QUuid is of the same variant, + and lexicographically after the \a other QUuid; + otherwise returns FALSE. + + \sa variant() +*/ +#define ISMORE(f1, f2) if (f1!=f2) return (f1>f2); +bool QUuid::operator>(const QUuid &other ) const +{ + if ( variant() != other.variant() ) + return FALSE; + + ISMORE( data1, other.data1 ); + ISMORE( data2, other.data2 ); + ISMORE( data3, other.data3 ); + for ( int n = 0; n < 8; n++ ) + { + ISMORE( data4[n], other.data4[n] ); + } + return FALSE; +} |