[git commit] *: silence some warnings

[Bernhard Reutner-Fischer]

commit: https://git.uclibc.org/uClibc++/commit/?id=e3c783264d1f11084f25f2fc527b054b524b72d6
branch: https://git.uclibc.org/uClibc++/commit/?id=refs/heads/master

in c++-98 mode as well as in c++-11 mode

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop at gmail.com>
---
 include/fstream  | 9 +++++----
 include/ios      | 9 ++++++---
 include/istream  | 3 ++-
 include/iterator | 2 +-
 4 files changed, 14 insertions(+), 9 deletions(-)

diff --git a/include/fstream b/include/fstream
index b8dd602..fddfa35 100644
--- a/include/fstream
+++ b/include/fstream
@@ -66,9 +66,10 @@ namespace std{
 
 		//Constructors/destructor:
 
-		_UCXXEXPORT basic_filebuf()	: basic_streambuf<charT, traits>(), fp(0), pbuffer(0), gbuffer(0)
+		_UCXXEXPORT basic_filebuf()
+			: basic_streambuf<charT, traits>(), fp(0), pbuffer(0),
+				gbuffer(0), append(false)
 		{
-			append=false;
 			pbuffer = new char_type[__UCLIBCXX_IOSTREAM_BUFSIZE__];
 			gbuffer = new char_type[__UCLIBCXX_IOSTREAM_BUFSIZE__];
 
@@ -375,12 +376,12 @@ namespace std{
 			if(s == 0 && n == 0){	//Unbuffered
 				if(pbuffer !=0){
 					delete [] pbuffer;
+					pbuffer = 0;
 				}
 				if(gbuffer !=0){
 					delete [] gbuffer;
+					gbuffer = 0;
 				}
-				pbuffer = 0;
-				gbuffer = 0;
 			}else if(basic_streambuf<charT,traits>::gptr() !=0 && 
 				basic_streambuf<charT,traits>::gptr()==basic_streambuf<charT,traits>::egptr())
 			{
diff --git a/include/ios b/include/ios
index 31f2211..ac6566a 100644
--- a/include/ios
+++ b/include/ios
@@ -139,13 +139,15 @@ namespace std{
 //		long&  iword(int index);
 //		void*& pword(int index);
 
-		_UCXXEXPORT ~ios_base() { }
-
 		enum event { erase_event, imbue_event, copyfmt_event };
 
 		typedef void (*event_callback)(event, ios_base&, int index);
 //		void register_callback(event_call_back fn, int index);
 
+		virtual _UCXXEXPORT ~ios_base() {
+			/* would run erase_event callbacks here */
+		}
+
 		//We are going to wrap stdio so we don't need implementation of the following:
 		inline static bool sync_with_stdio(bool = true) { return true; }
 
@@ -340,7 +342,8 @@ namespace std{
 			throw_mask = except;
 		}
 
-		explicit _UCXXEXPORT basic_ios(basic_streambuf<charT,traits>* sb) : fill_char(' '), mtied(0), mstreambuf(0){
+		explicit _UCXXEXPORT basic_ios(basic_streambuf<charT,traits>* sb)
+			: fill_char(' '), mtied(0), mstreambuf(0), throw_mask(0) {
 			init(sb);
 		}
 
diff --git a/include/istream b/include/istream
index a6fe3de..850ac30 100644
--- a/include/istream
+++ b/include/istream
@@ -345,7 +345,8 @@ namespace std{
 	{
 		bool ok;
 	public:
-		explicit _UCXXEXPORT sentry(basic_istream<charT,traits>& os, bool noskipws = false){
+		explicit _UCXXEXPORT sentry(basic_istream<charT,traits>& os, bool noskipws = false)
+			: ok(false){
 			if(os.good() !=0){		//Prepare for output
 			}
 
diff --git a/include/iterator b/include/iterator
index 32d64aa..d65f467 100644
--- a/include/iterator
+++ b/include/iterator
@@ -157,7 +157,7 @@ namespace std{
 			sbuf->sbumpc();
 			return *this;
 		}
-		proxy operator++(int){
+		istreambuf_iterator<charT,traits> operator++(int){
 			istreambuf_iterator<charT,traits> tmp = *this;
 			sbuf->sbumpc();
 			return(tmp);