bitset (bitset<>::bitset(), [...]): Add constexpr specifier.

2010-11-07  Paolo Carlini  <paolo.carlini@oracle.com>

	* include/profile/bitset (bitset<>::bitset(), bitset<>::
	bitset(unsigned long long)): Add constexpr specifier.

From-SVN: r166417

libstdc++-v3/ChangeLog

 2010-11-07  Paolo Carlini  <paolo.carlini@oracle.com>
 
+	* include/profile/bitset (bitset<>::bitset(), bitset<>::
+	bitset(unsigned long long)): Add constexpr specifier.
+
+2010-11-07  Paolo Carlini  <paolo.carlini@oracle.com>
+
 	* include/debug/bitset: Do not derive from _Safe_sequence_base in
 	C++0x mode, otherwise std::bitset isn't a literal type anymore;
 	adjust everywhere.

libstdc++-v3/include/profile/bitset

@@ -95,10 +95,10 @@ namespace __profile
       };
 
       // 23.3.5.1 constructors:
-      bitset() : _Base() { }
+      _GLIBCXX_CONSTEXPR bitset() : _Base() { }
 
 #ifdef __GXX_EXPERIMENTAL_CXX0X__
-      bitset(unsigned long long __val)
+      constexpr bitset(unsigned long long __val)
 #else
       bitset(unsigned long __val)
 #endif