basic_string.h (to_string(int), [...]): Add, per resolution of DR 1261.

basic_string.h (to_string(int), [...]): Add, per resolution of DR 1261.

2009-11-11  Paolo Carlini  <paolo.carlini@oracle.com>

	* include/bits/basic_string.h (to_string(int), to_string(unsigned),
	to_string(long), to_string(unsigned long), to_string(float),
	to_string(double), to_wstring(int), to_wstring(unsigned),
	to_wstring(long), to_wstring(unsigned long), to_wstring(float),
	to_wstring(double)): Add, per resolution of DR 1261.
	* include/ext/vstring.h: Likewise.
	* testsuite/21_strings/basic_string/numeric_conversions/char/
	dr1261.cc: Add.
	* testsuite/21_strings/basic_string/numeric_conversions/wchar_t/
	dr1261.cc: Likewise.

From-SVN: r154102