Add default numpunct locale.

include/crap/locale

@@ -14,6 +14,7 @@
 #include "locale.d/isuppervalue.h"
 #include "locale.d/isxdigitvalue.h"
 #include "locale.d/locale.h"
+#include "locale.d/numpunct.h"
 #include "locale.d/numpunctbyname.h"
 
 #endif

include/crap/locale.d/numpunct.h

@@ -0,0 +1,105 @@
+#ifndef CRAP_LOCALE_NUMPUNCT
+#define CRAP_LOCALE_NUMPUNCT
+
+#include <type_traits>
+
+#include "../string.d/string.h"
+
+namespace crap
+{
+ template <class> struct numpunct;
+
+ template <> struct numpunct <char>
+ { //Defaults for C standard.
+  using char_type = char;
+  template <char_type ... Chars> using string_type =  string<char_type, Chars...>;
+  using decimalPoint_t = std :: integral_constant<char, '.'>;
+  using thousandsSep_t = std :: integral_constant<char, ','>;
+  using grouping_t = string<char>;
+  using truename_t = string<char, 't', 'r', 'u', 'e'>;
+  using falsetype_t = string<char, 'f', 'a', 'l', 's', 'e'>;
+  constexpr decimalPoint_t decimalPoint() const noexcept;
+  constexpr thousandsSep_t thousandsSep() const noexcept;
+  constexpr grouping_t grouping() const noexcept;
+  constexpr truename_t truename() const noexcept;
+  constexpr falsename_t falsename() const noexcept;
+ };
+
+ template <> struct numpunct <wchar_t>
+ { //Defaults for C standard.
+  using char_type = wchar_t;
+  template <char_type ... Chars> using string_type =  string<char_type, Chars...>;
+  using decimalPoint_t = std :: integral_constant<wchar_t, L'.'>;
+  using thousandsSep_t = std :: integral_constant<wchar_t, L','>;
+  using grouping_t = string<wchar_t>;
+  using truename_t = string<wchar_t, L't', L'r', L'u', L'e'>;
+  using falsetype_t = string<wchar_t, L'f', L'a', L'l', L's', L'e'>;
+  constexpr decimalPoint_t decimalPoint() const noexcept;
+  constexpr thousandsSep_t thousandsSep() const noexcept;
+  constexpr grouping_t grouping() const noexcept;
+  constexpr truename_t truename() const noexcept;
+  constexpr falsename_t falsename() const noexcept;
+ };
+}
+
+inline constexpr typename crap :: numpunct <char> :: decimalPoint_t
+crap :: numpunct <char> :: decimalPoint() const noexcept
+{
+ return {};
+}
+
+inline constexpr typename crap :: numpunct <char> :: thousandsSep_t
+crap :: numpunct <char> :: thousandsSep() const noexcept
+{
+ return {};
+}
+
+inline constexpr typename crap :: numpunct <char> :: grouping_t
+crap :: numpunct <char> :: grouping() const noexcept
+{
+ return {};
+}
+
+inline constexpr typename crap :: numpunct <char> :: truename_t
+crap :: numpunct <char> :: truename() const noexcept
+{
+ return {};
+}
+
+inline constexpr typename crap :: numpunct <char> :: falsename_t
+crap :: numpunct <char> :: falsename() const noexcept
+{
+ return {};
+}
+
+inline constexpr typename crap :: numpunct <wchar_t> :: decimalPoint_t
+crap :: numpunct <wchar_t> :: decimalPoint() const noexcept
+{
+ return {};
+}
+
+inline constexpr typename crap :: numpunct <wchar_t> :: thousandsSep_t
+crap :: numpunct <wchar_t> :: thousandsSep() const noexcept
+{
+ return {};
+}
+
+inline constexpr typename crap :: numpunct <wchar_t> :: grouping_t
+crap :: numpunct <wchar_t> :: grouping() const noexcept
+{
+ return {};
+}
+
+inline constexpr typename crap :: numpunct <wchar_t> :: truename_t
+crap :: numpunct <wchar_t> :: truename() const noexcept
+{
+ return {};
+}
+
+inline constexpr typename crap :: numpunct <wchar_t> :: falsename_t
+crap :: numpunct <wchar_t> :: falsename() const noexcept
+{
+ return {};
+}
+#endif
+