codecvt.h (class __codecvt_abstract_base): Add __c_locale type _M_c_locale_codecvt member.

2002-09-10  Paolo Carlini  <pcarlini@unitus.it>

	* include/bits/codecvt.h (class __codecvt_abstract_base):
	Add __c_locale type _M_c_locale_codecvt member.
	(class codecvt<char, char, mbstate_t>,
	class codecvt<wchar_t, char, mbstate_t>): Add new
	codecvt(__c_locale, size_t) constructor.
	(codecvt_byname::codecvt_byname): Update.
	* src/codecvt.cc (class codecvt<char, char, mbstate_t>,
	class codecvt<wchar_t, char, mbstate_t>): Update codecvt(size_t)
	constructor and ~codecvt() destructor; define
	codecvt(__c_locale, size_t) constructor.
	(codecvt::do_out): Switch to _M_c_locale_codecvt around wcsrtombs call.
	(codecvt::do_in): Ditto for mbsrtowcs call.
	* src/localename.cc (locale::_Impl::_Impl(const char*, size_t)):
	Tweak construction of codecvt facets.

From-SVN: r57011

4 files changed, 75 insertions, 9 deletions

diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index e89c618..ef14d43 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,20 @@
+2002-09-10  Paolo Carlini  <pcarlini@unitus.it>
+
+	* include/bits/codecvt.h (class __codecvt_abstract_base):
+	Add __c_locale type _M_c_locale_codecvt member.
+	(class codecvt<char, char, mbstate_t>,
+	class codecvt<wchar_t, char, mbstate_t>): Add new
+	codecvt(__c_locale, size_t) constructor.
+	(codecvt_byname::codecvt_byname): Update.
+	* src/codecvt.cc (class codecvt<char, char, mbstate_t>,
+	class codecvt<wchar_t, char, mbstate_t>): Update codecvt(size_t)
+	constructor and ~codecvt() destructor; define
+	codecvt(__c_locale, size_t) constructor.
+	(codecvt::do_out): Switch to _M_c_locale_codecvt around wcsrtombs call.
+	(codecvt::do_in): Ditto for mbsrtowcs call.
+	* src/localename.cc (locale::_Impl::_Impl(const char*, size_t)):
+	Tweak construction of codecvt facets.
+
 2002-09-10  Danny Smith  <dannysmith@users.sourceforge.net>
 
 	* include/bits/locale_facets.tcc (__convert_from_v):
diff --git a/libstdc++-v3/include/bits/codecvt.h b/libstdc++-v3/include/bits/codecvt.h
index 506752f..3a3f604 100644
--- a/libstdc++-v3/include/bits/codecvt.h
+++ b/libstdc++-v3/include/bits/codecvt.h
@@ -70,7 +70,11 @@
       typedef _InternT 					intern_type;
       typedef _ExternT 					extern_type;
       typedef _StateT  					state_type;
-      
+ 
+    protected:
+      __c_locale		_M_c_locale_codecvt;
+
+    public:
       // 22.2.1.5.1 codecvt members
       result
       out(state_type& __state, const intern_type* __from, 
@@ -225,6 +229,10 @@
       explicit 
       codecvt(size_t __refs = 0);
 
+      // Non-standard.
+      explicit 
+      codecvt(__c_locale __cloc, size_t __refs = 0); 
+
     protected:
       virtual 
       ~codecvt();
@@ -277,6 +285,10 @@
       explicit 
       codecvt(size_t __refs = 0);
 
+      // Non-standard.
+      explicit 
+      codecvt(__c_locale __cloc, size_t __refs = 0);
+
     protected:
       virtual 
       ~codecvt();
@@ -320,8 +332,14 @@
     {
     public:
       explicit 
-      codecvt_byname(const char*, size_t __refs = 0) 
-      : codecvt<_InternT, _ExternT, _StateT>(__refs) { }
+      codecvt_byname(const char* __s, size_t __refs = 0) 
+      : codecvt<_InternT, _ExternT, _StateT>(__refs)
+      { 
+	if (_M_c_locale_codecvt != _S_c_locale)
+	  _S_destroy_c_locale(_M_c_locale_codecvt);
+	_S_create_c_locale(_M_c_locale_codecvt, __s); 
+      }
+
     protected:
       virtual 
       ~codecvt_byname() { }
diff --git a/libstdc++-v3/src/codecvt.cc b/libstdc++-v3/src/codecvt.cc
index 032667e..dcce705 100644
--- a/libstdc++-v3/src/codecvt.cc
+++ b/libstdc++-v3/src/codecvt.cc
@@ -39,10 +39,19 @@ namespace std
   codecvt<char, char, mbstate_t>::
   codecvt(size_t __refs)
   : __codecvt_abstract_base<char, char, mbstate_t>(__refs)
-  { }
+  { _M_c_locale_codecvt = _S_c_locale; }
 
   codecvt<char, char, mbstate_t>::
-  ~codecvt() { }
+  codecvt(__c_locale __cloc, size_t __refs)
+  : __codecvt_abstract_base<char, char, mbstate_t>(__refs)
+  { _M_c_locale_codecvt = _S_clone_c_locale(__cloc); }
+
+  codecvt<char, char, mbstate_t>::
+  ~codecvt()
+   {
+     if (_M_c_locale_codecvt != _S_c_locale)
+       _S_destroy_c_locale(_M_c_locale_codecvt);
+   }
   
   codecvt_base::result
   codecvt<char, char, mbstate_t>::
@@ -106,10 +115,20 @@ namespace std
   // codecvt<wchar_t, char, mbstate_t> required specialization
   codecvt<wchar_t, char, mbstate_t>::
   codecvt(size_t __refs)
-  : __codecvt_abstract_base<wchar_t, char, mbstate_t>(__refs) { }
+  : __codecvt_abstract_base<wchar_t, char, mbstate_t>(__refs)
+  { _M_c_locale_codecvt = _S_c_locale; }  
 
   codecvt<wchar_t, char, mbstate_t>::
-  ~codecvt() { }
+  codecvt(__c_locale __cloc, size_t __refs)
+  : __codecvt_abstract_base<wchar_t, char, mbstate_t>(__refs)
+  { _M_c_locale_codecvt = _S_clone_c_locale(__cloc); }
+
+  codecvt<wchar_t, char, mbstate_t>::
+  ~codecvt()
+  {
+    if (_M_c_locale_codecvt != _S_c_locale)
+      _S_destroy_c_locale(_M_c_locale_codecvt); 
+  }
   
   codecvt_base::result
   codecvt<wchar_t, char, mbstate_t>::
@@ -120,7 +139,13 @@ namespace std
   {
     result __ret = error;
     size_t __len = min(__from_end - __from, __to_end - __to);
+#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
+    __c_locale __old = __uselocale(_M_c_locale_codecvt);
+#endif
     size_t __conv = wcsrtombs(__to, &__from, __len, &__state);
+#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
+    __uselocale(__old);
+#endif
 
     if (__conv == __len)
       {
@@ -158,7 +183,13 @@ namespace std
   {
     result __ret = error;
     size_t __len = min(__from_end - __from, __to_end - __to);
+#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
+    __c_locale __old = __uselocale(_M_c_locale_codecvt);
+#endif
     size_t __conv = mbsrtowcs(__to, &__from, __len, &__state);
+#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2)
+    __uselocale(__old);
+#endif
 
     if (__conv == __len)
       {
diff --git a/libstdc++-v3/src/localename.cc b/libstdc++-v3/src/localename.cc
index 8fa9118..a0c9e75 100644
--- a/libstdc++-v3/src/localename.cc
+++ b/libstdc++-v3/src/localename.cc
@@ -127,7 +127,7 @@ namespace std
 
     // Construct all standard facets and add them to _M_facets.
     _M_init_facet(new std::ctype<char>(__cloc));
-    _M_init_facet(new codecvt<char, char, mbstate_t>);
+    _M_init_facet(new codecvt<char, char, mbstate_t>(__cloc));
     _M_init_facet(new numpunct<char>(__cloc));
     _M_init_facet(new num_get<char>);
     _M_init_facet(new num_put<char>);
@@ -143,7 +143,7 @@ namespace std
 	
 #ifdef  _GLIBCPP_USE_WCHAR_T
     _M_init_facet(new std::ctype<wchar_t>(__cloc));
-    _M_init_facet(new codecvt<wchar_t, char, mbstate_t>);
+    _M_init_facet(new codecvt<wchar_t, char, mbstate_t>(__cloc));
     _M_init_facet(new numpunct<wchar_t>(__cloc));
     _M_init_facet(new num_get<wchar_t>);
     _M_init_facet(new num_put<wchar_t>);