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extern/ustl/1.5/ustdxept.cc

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+// This file is part of the uSTL library, an STL implementation.
+//
+// Copyright (c) 2005 by Mike Sharov <msharov@users.sourceforge.net>
+// This file is free software, distributed under the MIT License.
+
+#include "ustdxept.h"
+#include "mistream.h"
+#include "mostream.h"
+#include "strmsize.h"
+#include "uiosfunc.h"
+#include "uspecial.h"
+
+namespace ustl {
+
+//----------------------------------------------------------------------
+
+/// \p arg contains a description of the error.
+error_message::error_message (const char* arg) throw()
+: m_Arg ()
+{
+    try { m_Arg = arg; } catch (...) {}
+    set_format (xfmt_ErrorMessage);
+}
+
+/// Virtual destructor
+error_message::~error_message (void) throw()
+{
+}
+
+/// Returns a descriptive error message. fmt="%s: %s"
+void error_message::info (string& msgbuf, const char* fmt) const throw()
+{
+    if (!fmt) fmt = "%s: %s";
+    try { msgbuf.format (fmt, name(), m_Arg.cdata()); } catch (...) {}
+}
+
+/// Reads the object from stream \p is.
+void error_message::read (istream& is)
+{
+    exception::read (is);
+    is >> m_Arg >> ios::align();
+}
+
+/// Writes the object to stream \p os.
+void error_message::write (ostream& os) const
+{
+    exception::write (os);
+    os << m_Arg << ios::align();
+}
+
+/// Returns the size of the written object.
+size_t error_message::stream_size (void) const
+{
+    return (exception::stream_size() + Align (stream_size_of (m_Arg)));
+}
+
+} // namespace ustl