3 files changed, 4 insertions, 4 deletions
diff --git a/sax/source/expatwrap/saxwriter.cxx b/sax/source/expatwrap/saxwriter.cxx
index f4f4c4bae142..2fe579648ce5 100644
--- a/sax/source/expatwrap/saxwriter.cxx
+++ b/sax/source/expatwrap/saxwriter.cxx
@@ -464,7 +464,7 @@ bool SaxWriterHelper::convertToXML( const sal_Unicode * pStr,
             rPos = writeSequence();
 
         // reset left-over surrogate
-        if( ( nSurrogate != 0 ) && !( c >= 0xd800 && c < 0xdc00 ) )
+        if( ( nSurrogate != 0 ) && ( c < 0xd800 || c >= 0xdc00 ) )
         {
             OSL_ENSURE( nSurrogate != 0, "left-over Unicode surrogate" );
             nSurrogate = 0;
@@ -901,7 +901,7 @@ sal_Int32 calcXMLByteLength( const OUString& rStr,
         }
 
         // surrogate processing
-        if( ( nSurrogate != 0 ) && !( c >= 0xd800 && c < 0xdc00 ) )
+        if( ( nSurrogate != 0 ) && ( c < 0xd800 || c >= 0xdc00 ) )
             nSurrogate = 0;
     }
 
diff --git a/sax/source/expatwrap/xml2utf.cxx b/sax/source/expatwrap/xml2utf.cxx
index 420f90b6c3f0..9e531b13cfa6 100644
--- a/sax/source/expatwrap/xml2utf.cxx
+++ b/sax/source/expatwrap/xml2utf.cxx
@@ -117,7 +117,7 @@ sal_Int32 XMLFile2UTFConverter::readAndConvert( Sequence<sal_Int8> &seq , sal_In
 void XMLFile2UTFConverter::removeEncoding( Sequence<sal_Int8> &seq )
 {
     const sal_Int8 *pSource = seq.getArray();
-    if (!(seq.getLength() >= 5 && !strncmp(reinterpret_cast<const char *>(pSource), "<?xml", 5)))
+    if (seq.getLength() < 5 || strncmp(reinterpret_cast<const char *>(pSource), "<?xml", 5))
         return;
 
     // scan for encoding
diff --git a/sax/source/tools/converter.cxx b/sax/source/tools/converter.cxx
index ac6eba928526..1f070e0260e1 100644
--- a/sax/source/tools/converter.cxx
+++ b/sax/source/tools/converter.cxx
@@ -970,7 +970,7 @@ readUnsignedNumber(const OUString & rString,
     while (nPos < rString.getLength())
     {
         const sal_Unicode c = rString[nPos];
-        if (!(('0' <= c) && (c <= '9')))
+        if (('0' > c) || (c > '9'))
             break;
         ++nPos;
     }