| -rw-r--r-- | qmake/tools/qbitarray.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/qmake/tools/qbitarray.cpp b/qmake/tools/qbitarray.cpp index 4f4e14b..1aaf963 100644 --- a/qmake/tools/qbitarray.cpp +++ b/qmake/tools/qbitarray.cpp @@ -168,65 +168,66 @@ QBitArray::QBitArray( uint size ) : QByteArray( 0, 0 ) Constructs a shallow copy of \a a. */ /*! \fn QBitArray &QBitArray::operator=( const QBitArray &a ) Assigns a shallow copy of \a a to this bit array and returns a reference to this array. */ /*! Pad last byte with 0-bits. */ void QBitArray::pad0() { uint sz = size(); if ( sz && sz%8 ) *(data()+sz/8) &= (1 << (sz%8)) - 1; } /*! \fn uint QBitArray::size() const Returns the bit array's size (number of bits). \sa resize() */ /*! Resizes the bit array to \a size bits and returns TRUE if the bit - array could be resized; otherwise returns FALSE. + array could be resized; otherwise returns FALSE. The array becomes + a null array if \a size == 0. If the array is expanded, the new bits are set to 0. \sa size() */ bool QBitArray::resize( uint size ) { uint s = this->size(); if ( !QByteArray::resize( (size+7)/8 ) ) return FALSE; // cannot resize SHBLOCK->nbits = size; if ( size != 0 ) { // not null array int ds = (int)(size+7)/8 - (int)(s+7)/8;// number of bytes difference if ( ds > 0 ) // expanding array memset( data() + (s+7)/8, 0, ds ); // reset new data } return TRUE; } /*! Fills the bit array with \a v (1's if \a v is TRUE, or 0's if \a v is FALSE). fill() resizes the bit array to \a size bits if \a size is nonnegative. Returns FALSE if a nonnegative \e size was specified and the bit array could not be resized; otherwise returns TRUE. \sa resize() |