Fixed various issues found by PVS-Studio.

3 files changed, 6 insertions, 4 deletions

diff --git a/qtools/qcstring.h b/qtools/qcstring.h
index 4f15b18..abf30b3 100644
--- a/qtools/qcstring.h
+++ b/qtools/qcstring.h
@@ -149,7 +149,7 @@ public:
     /** creates a string with room for size characters
      *  @param[in] size the number of character to allocate (including the 0-terminator)
      */
-    QCString( int size ) : m_rep(size)
+    explicit QCString( int size ) : m_rep(size)
     {
     }
 
diff --git a/qtools/qfile_win32.cpp b/qtools/qfile_win32.cpp
index 80ad628..a4ab013 100644
--- a/qtools/qfile_win32.cpp
+++ b/qtools/qfile_win32.cpp
@@ -264,7 +264,7 @@ bool QFile::open( int m )
 	} else {
 	    length = (int)st.st_size;
 	    ioIndex  = (flags() & IO_Append) == 0 ? 0 : length;
-	    if ( (flags() & !IO_Truncate) && length == 0 && isReadable() ) {
+	    if ( !(flags()&IO_Truncate) && length == 0 && isReadable() ) {
 		// try if you can read from it (if you can, it's a sequential
 		// device; e.g. a file in the /proc filesystem)
 		int c = getch();
diff --git a/qtools/qstring.cpp b/qtools/qstring.cpp
index 458fd53..d831cb1 100644
--- a/qtools/qstring.cpp
+++ b/qtools/qstring.cpp
@@ -11957,7 +11957,8 @@ QString QString::visual(int index, int len)
 QChar* QString::asciiToUnicode( const QByteArray& ba, uint* len )
 {
     if ( ba.isNull() ) {
-	*len = 0;
+	if ( len )
+          *len = 0;
 	return 0;
     }
     int l = 0;
@@ -11976,7 +11977,8 @@ QChar* QString::asciiToUnicode( const QByteArray& ba, uint* len )
 static QChar* internalAsciiToUnicode( const QByteArray& ba, uint* len )
 {
     if ( ba.isNull() ) {
-	*len = 0;
+        if ( len )
+  	    *len = 0;
 	return 0;
     }
     int l = 0;