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diff --git a/libxsde/xsde/cxx/parser/non-validating/long.hxx b/libxsde/xsde/cxx/parser/non-validating/long.hxx
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+// file : xsde/cxx/parser/non-validating/long.hxx
+// author : Boris Kolpackov <boris@codesynthesis.com>
+// copyright : Copyright (c) 2005-2009 Code Synthesis Tools CC
+// license : GNU GPL v2 + exceptions; see accompanying LICENSE file
+
+#ifndef XSDE_CXX_PARSER_NON_VALIDATING_LONG_HXX
+#define XSDE_CXX_PARSER_NON_VALIDATING_LONG_HXX
+
+#include <xsde/cxx/parser/non-validating/number.hxx>
+#include <xsde/cxx/parser/non-validating/xml-schema-pskel.hxx>
+
+namespace xsde
+{
+ namespace cxx
+ {
+ namespace parser
+ {
+ namespace non_validating
+ {
+ // Fall-back implementation when 64 bit long long is not available.
+ //
+#ifdef XSDE_REUSE_STYLE_MIXIN
+ struct long_pimpl: virtual long_pskel, number
+#else
+ struct long_pimpl: long_pskel, number
+#endif
+ {
+ virtual void
+ _pre ();
+
+ virtual void
+ _characters (const ro_string&);
+
+ virtual long
+ post_long ();
+
+ protected:
+ // We only need strlen("09223372036854775808") + 1 characters to
+ // hold all valid and trimmed string representations of long long.
+ //
+ char str_[21];
+ };
+ }
+ }
+ }
+}
+
+#endif // XSDE_CXX_PARSER_NON_VALIDATING_LONG_HXX