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

5 files changed, 309 insertions, 0 deletions

diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 154d4d5..b34122c 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,16 @@
+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.
+
 2009-11-09  Benjamin Kosnik  <bkoz@redhat.com>
 
 	* doc/doxygen/user.cfg.in: Regenerate, add files.
diff --git a/libstdc++-v3/include/bits/basic_string.h b/libstdc++-v3/include/bits/basic_string.h
index 9d44dc4..269a75e 100644
--- a/libstdc++-v3/include/bits/basic_string.h
+++ b/libstdc++-v3/include/bits/basic_string.h
@@ -2639,6 +2639,30 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
   { return __gnu_cxx::__stoa(&std::strtold, "stold", __str.c_str(), __idx); }
 
   // NB: (v)snprintf vs sprintf.
+
+  // DR 1261.
+  inline string
+  to_string(int __val)
+  { return __gnu_cxx::__to_xstring<string>(&std::vsnprintf, 4 * sizeof(int),
+					   "%d", __val); }
+
+  inline string
+  to_string(unsigned __val)
+  { return __gnu_cxx::__to_xstring<string>(&std::vsnprintf,
+					   4 * sizeof(unsigned),
+					   "%u", __val); }
+
+  inline string
+  to_string(long __val)
+  { return __gnu_cxx::__to_xstring<string>(&std::vsnprintf, 4 * sizeof(long),
+					   "%ld", __val); }
+
+  inline string
+  to_string(unsigned long __val)
+  { return __gnu_cxx::__to_xstring<string>(&std::vsnprintf,
+					   4 * sizeof(unsigned long),
+					   "%lu", __val); }
+
   inline string
   to_string(long long __val)
   { return __gnu_cxx::__to_xstring<string>(&std::vsnprintf,
@@ -2652,6 +2676,24 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
 					   "%llu", __val); }
 
   inline string
+  to_string(float __val)
+  {
+    const int __n = 
+      __gnu_cxx::__numeric_traits<float>::__max_exponent10 + 20;
+    return __gnu_cxx::__to_xstring<string>(&std::vsnprintf, __n,
+					   "%f", __val);
+  }
+
+  inline string
+  to_string(double __val)
+  {
+    const int __n = 
+      __gnu_cxx::__numeric_traits<double>::__max_exponent10 + 20;
+    return __gnu_cxx::__to_xstring<string>(&std::vsnprintf, __n,
+					   "%f", __val);
+  }
+
+  inline string
   to_string(long double __val)
   {
     const int __n = 
@@ -2699,6 +2741,29 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
   stold(const wstring& __str, size_t* __idx = 0)
   { return __gnu_cxx::__stoa(&std::wcstold, "stold", __str.c_str(), __idx); }
 
+  // DR 1261.
+  inline wstring
+  to_wstring(int __val)
+  { return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, 4 * sizeof(int),
+					    L"%d", __val); }
+
+  inline wstring
+  to_wstring(unsigned __val)
+  { return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf,
+					    4 * sizeof(unsigned),
+					    L"%u", __val); }
+
+  inline wstring
+  to_wstring(long __val)
+  { return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, 4 * sizeof(long),
+					    L"%ld", __val); }
+
+  inline wstring
+  to_wstring(unsigned long __val)
+  { return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf,
+					    4 * sizeof(unsigned long),
+					    L"%lu", __val); }
+
   inline wstring
   to_wstring(long long __val)
   { return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf,
@@ -2712,6 +2777,24 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
 					    L"%llu", __val); }
 
   inline wstring
+  to_wstring(float __val)
+  {
+    const int __n =
+      __gnu_cxx::__numeric_traits<float>::__max_exponent10 + 20;
+    return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, __n,
+					    L"%f", __val);
+  }
+
+  inline wstring
+  to_wstring(double __val)
+  {
+    const int __n =
+      __gnu_cxx::__numeric_traits<double>::__max_exponent10 + 20;
+    return __gnu_cxx::__to_xstring<wstring>(&std::vswprintf, __n,
+					    L"%f", __val);
+  }
+
+  inline wstring
   to_wstring(long double __val)
   {
     const int __n =
diff --git a/libstdc++-v3/include/ext/vstring.h b/libstdc++-v3/include/ext/vstring.h
index 61e6ae4..183d037 100644
--- a/libstdc++-v3/include/ext/vstring.h
+++ b/libstdc++-v3/include/ext/vstring.h
@@ -2464,6 +2464,32 @@ _GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx)
   { return __gnu_cxx::__stoa(&std::strtold, "stold", __str.c_str(), __idx); }
 
   // NB: (v)snprintf vs sprintf.
+
+  // DR 1261.
+  inline __vstring
+  to_string(int __val)
+  { return __gnu_cxx::__to_xstring<__vstring>(&std::vsnprintf, 4 * sizeof(int),
+					      "%d", __val); }
+
+  inline __vstring
+  to_string(unsigned __val)
+  { return __gnu_cxx::__to_xstring<__vstring>(&std::vsnprintf,
+					      4 * sizeof(unsigned),
+					      "%u", __val); }
+
+  inline __vstring
+  to_string(long __val)
+  { return __gnu_cxx::__to_xstring<__vstring>(&std::vsnprintf,
+					      4 * sizeof(long),
+					      "%ld", __val); }
+
+  inline __vstring
+  to_string(unsigned long __val)
+  { return __gnu_cxx::__to_xstring<__vstring>(&std::vsnprintf,
+					      4 * sizeof(unsigned long),
+					      "%lu", __val); }
+
+
   inline __vstring
   to_string(long long __val)
   { return __gnu_cxx::__to_xstring<__vstring>(&std::vsnprintf,
@@ -2477,6 +2503,22 @@ _GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx)
 					      "%llu", __val); }
 
   inline __vstring
+  to_string(float __val)
+  {
+    const int __n = __numeric_traits<float>::__max_exponent10 + 20;
+    return __gnu_cxx::__to_xstring<__vstring>(&std::vsnprintf, __n,
+					      "%f", __val);
+  }
+
+  inline __vstring
+  to_string(double __val)
+  {
+    const int __n = __numeric_traits<double>::__max_exponent10 + 20;
+    return __gnu_cxx::__to_xstring<__vstring>(&std::vsnprintf, __n,
+					      "%f", __val);
+  }
+
+  inline __vstring
   to_string(long double __val)
   {
     const int __n = __numeric_traits<long double>::__max_exponent10 + 20;
@@ -2524,6 +2566,31 @@ _GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx)
   { return __gnu_cxx::__stoa(&std::wcstold, "stold", __str.c_str(), __idx); }
 
 #ifndef _GLIBCXX_HAVE_BROKEN_VSWPRINTF
+  // DR 1261.
+  inline __wvstring
+  to_wstring(int __val)
+  { return __gnu_cxx::__to_xstring<__wvstring>(&std::vswprintf,
+					       4 * sizeof(int),
+					       L"%d", __val); }
+
+  inline __wvstring
+  to_wstring(unsigned __val)
+  { return __gnu_cxx::__to_xstring<__wvstring>(&std::vswprintf,
+					       4 * sizeof(unsigned),
+					       L"%u", __val); }
+
+  inline __wvstring
+  to_wstring(long __val)
+  { return __gnu_cxx::__to_xstring<__wvstring>(&std::vswprintf,
+					       4 * sizeof(long),
+					       L"%ld", __val); }
+
+  inline __wvstring
+  to_wstring(unsigned long __val)
+  { return __gnu_cxx::__to_xstring<__wvstring>(&std::vswprintf,
+					       4 * sizeof(unsigned long),
+					       L"%lu", __val); }
+
   inline __wvstring
   to_wstring(long long __val)
   { return __gnu_cxx::__to_xstring<__wvstring>(&std::vswprintf,
@@ -2537,6 +2604,22 @@ _GLIBCXX_BEGIN_NAMESPACE(__gnu_cxx)
 					       L"%llu", __val); }
 
   inline __wvstring
+  to_wstring(float __val)
+  {
+    const int __n = __numeric_traits<float>::__max_exponent10 + 20;
+    return __gnu_cxx::__to_xstring<__wvstring>(&std::vswprintf, __n,
+					       L"%f", __val);
+  }
+
+  inline __wvstring
+  to_wstring(double __val)
+  {
+    const int __n = __numeric_traits<double>::__max_exponent10 + 20;
+    return __gnu_cxx::__to_xstring<__wvstring>(&std::vswprintf, __n,
+					       L"%f", __val);
+  }
+
+  inline __wvstring
   to_wstring(long double __val)
   {
     const int __n = __numeric_traits<long double>::__max_exponent10 + 20;
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/numeric_conversions/char/dr1261.cc b/libstdc++-v3/testsuite/21_strings/basic_string/numeric_conversions/char/dr1261.cc
new file mode 100644
index 0000000..739ceed
--- /dev/null
+++ b/libstdc++-v3/testsuite/21_strings/basic_string/numeric_conversions/char/dr1261.cc
@@ -0,0 +1,65 @@
+// { dg-options "-std=gnu++0x" }
+// { dg-require-string-conversions "" }
+
+// 2009-11-11  Paolo Carlini  <paolo.carlini@oracle.com>
+
+// Copyright (C) 2009 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING.  If not, write to the Free
+// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+// USA.
+
+#include <string>
+#include <testsuite_hooks.h>
+
+// DR 1261. Insufficient overloads for to_string / to_wstring
+void test01()
+{
+  bool test __attribute__((unused)) = true;
+  using namespace std;
+
+  const string one(to_string(-2));
+  VERIFY( one == "-2" );
+
+  const string two(to_string(10u));
+  VERIFY( two == "10" );
+
+  const string three(to_string(2l));
+  VERIFY( three == "2" );
+
+  const string four(to_string(3000ul));
+  VERIFY( four == "3000" );
+
+  const string five(to_string(7ll));
+  VERIFY( five == "7" );
+
+  const string six(to_string(400ull));
+  VERIFY( six == "400" );
+
+  const string seven(to_string(-1.0F));
+  VERIFY( seven == "-1.000000" );
+
+  const string eight(to_string(2.0));
+  VERIFY( eight == "2.000000" );
+
+  const string nine(to_string(-4.0L));
+  VERIFY( nine == "-4.000000" );
+}
+
+int main()
+{
+  test01();
+  return 0;
+}
diff --git a/libstdc++-v3/testsuite/21_strings/basic_string/numeric_conversions/wchar_t/dr1261.cc b/libstdc++-v3/testsuite/21_strings/basic_string/numeric_conversions/wchar_t/dr1261.cc
new file mode 100644
index 0000000..7d754b3
--- /dev/null
+++ b/libstdc++-v3/testsuite/21_strings/basic_string/numeric_conversions/wchar_t/dr1261.cc
@@ -0,0 +1,65 @@
+// { dg-options "-std=gnu++0x" }
+// { dg-require-string-conversions "" }
+
+// 2009-11-11  Paolo Carlini  <paolo.carlini@oracle.com>
+
+// Copyright (C) 2009 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 2, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING.  If not, write to the Free
+// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+// USA.
+
+#include <string>
+#include <testsuite_hooks.h>
+
+// DR 1261. Insufficient overloads for to_string / to_wstring
+void test01()
+{
+  bool test __attribute__((unused)) = true;
+  using namespace std;
+
+  const wstring one(to_wstring(-2));
+  VERIFY( one == L"-2" );
+
+  const wstring two(to_wstring(10u));
+  VERIFY( two == L"10" );
+
+  const wstring three(to_wstring(2l));
+  VERIFY( three == L"2" );
+
+  const wstring four(to_wstring(3000ul));
+  VERIFY( four == L"3000" );
+
+  const wstring five(to_wstring(7ll));
+  VERIFY( five == L"7" );
+
+  const wstring six(to_wstring(400ull));
+  VERIFY( six == L"400" );
+
+  const wstring seven(to_wstring(-1.0F));
+  VERIFY( seven == L"-1.000000" );
+
+  const wstring eight(to_wstring(2.0));
+  VERIFY( eight == L"2.000000" );
+
+  const wstring nine(to_wstring(-4.0L));
+  VERIFY( nine == L"-4.000000" );
+}
+
+int main()
+{
+  test01();
+  return 0;
+}