Gats for QT is here. It's a pretty basic conversion right now, it doesn't

support debugging formatting (Bu::sio), it doesn't support gats-text string
parsing, and the exceptions need to be fixed to be real exceptions.

The basic functions have been renamed to match the Qt API and we use QT types
for everything (QHash, QList, QByteArray).  It needs more testing, but it's a
great start.

1 files changed, 122 insertions, 0 deletions

diff --git a/c++-qt/src/float.cpp b/c++-qt/src/float.cpp
new file mode 100644
index 0000000..a82edec
--- /dev/null
+++ b/c++-qt/src/float.cpp
@@ -0,0 +1,122 @@
+#include "gats-qt/float.h"
+#include "gats-qt/integer.h"
+
+#include <math.h>
+
+Gats::Float::Float() :
+        fVal( 0.0 )
+{
+}
+
+Gats::Float::Float( double f ) :
+        fVal( f )
+{
+}
+
+Gats::Float::~Float()
+{
+}
+
+void Gats::Float::write( QIODevice &rOut ) const
+{
+        if( fVal == 0.0 )
+        {
+                if( signbit( fVal ) )
+                        rOut.write("FZ", 2 );
+                else
+                        rOut.write("Fz", 2 );
+        }
+        else if( !isfinite( fVal ) )
+        {
+                if( isnan( fVal ) )
+                {
+                        if( signbit( fVal ) )
+                                rOut.write("FN", 2 );
+                        else
+                                rOut.write("Fn", 2 );
+                }
+                else
+                {
+                        if( signbit( fVal ) )
+                                rOut.write("FI", 2 );
+                        else
+                                rOut.write("Fi", 2 );
+                }
+        }
+        else
+        {
+                rOut.write("f", 1 );
+                double d = fVal;
+                bool bNeg = false;
+                int64_t iScale=0;
+                if( signbit( d ) )
+                {
+                        bNeg = true;
+                        d = -d;
+                }
+
+                iScale = log( d ) / 0x1.62e42fefa39efp+2; // log( 256.0 )
+                if( iScale < 0 ) iScale--;
+                d /= pow( 256.0, iScale );
+                
+                QByteArray s;
+                s += (uint8_t)(d);
+                d -= (int)d;
+                for( int j = 0; j < 150 && d; j++ )
+                {
+                        d = d*256.0;
+                        s += (uint8_t)d;
+                        d -= (int)d;
+                }
+                Gats::Integer::writePackedInt( rOut, bNeg?-s.size():s.size() );
+                rOut.write( s.constData(), s.size() );
+                Gats::Integer::writePackedInt( rOut, iScale );
+        }
+}
+
+void Gats::Float::read( QIODevice &rIn, char cType )
+{
+        if( cType == 'F' )
+        {
+                char buf;
+                rIn.read( &buf, 1 );
+                switch( buf )
+                {
+                        case 'N': fVal = -NAN;          break;
+                        case 'n': fVal = NAN;           break;
+                        case 'I': fVal = -INFINITY;     break;
+                        case 'i': fVal = INFINITY;      break;
+                        case 'Z': fVal = -0.0;          break;
+                        case 'z': fVal = 0.0;           break;
+                }
+        }
+        else if( cType == 'f' )
+        {
+                int64_t iStr;
+                Gats::Integer::readPackedInt( rIn, iStr );
+                bool bNeg = false;
+                if( iStr < 0 )
+                {
+                        bNeg = true;
+                        iStr = -iStr;
+                }
+                QByteArray s( iStr, '\0' );
+                rIn.read( s.data(), iStr );
+                fVal = 0.0;
+                for( int j = iStr-1; j > 0; j-- )
+                {
+                        fVal = (fVal+(uint8_t)s[j])*0x1p-8;
+                }
+                fVal += (uint8_t)s[0];
+                int64_t iScale;
+                Gats::Integer::readPackedInt( rIn, iScale );
+                fVal *= pow( 256.0, iScale );
+                if( bNeg ) fVal = -fVal;
+        }
+}
+/*
+Bu::Formatter &operator<<( Bu::Formatter &f, const Gats::Float &flt )
+{
+        return f << "(float) " << flt.getValue();
+}*/
+