+///////////////////////////////////////////////////////////////////////////
+//
+// Copyright (c) 2002, Industrial Light & Magic, a division of Lucas
+// Digital Ltd. LLC
+//
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+// * Neither the name of Industrial Light & Magic nor the names of
+// its contributors may be used to endorse or promote products derived
+// from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+///////////////////////////////////////////////////////////////////////////
+
+
+
+#ifndef INCLUDED_IEXBASEEXC_H
+#define INCLUDED_IEXBASEEXC_H
+
+
+//----------------------------------------------------------
+//
+// A general exception base class, and a few
+// useful exceptions derived from the base class.
+//
+//----------------------------------------------------------
+
+#include <string>
+#include <exception>
+#include <sstream>
+
+namespace Iex {
+
+#if (defined _WIN32 || defined _WIN64) && defined _MSC_VER
+// Tell MS VC++ to suppress exception specification warnings
+#pragma warning(disable:4290)
+#endif
+
+//-------------------------------
+// Our most basic exception class
+//-------------------------------
+
+class BaseExc: public std::string, public std::exception
+{
+ public:
+
+ //----------------------------
+ // Constructors and destructor
+ //----------------------------
+
+ BaseExc (const char *s = 0) throw(); // std::string (s)
+ BaseExc (const std::string &s) throw(); // std::string (s)
+ BaseExc (std::stringstream &s) throw(); // std::string (s.str())
+
+ BaseExc (const BaseExc &be) throw();
+ virtual ~BaseExc () throw ();
+
+ //--------------------------------------------
+ // what() method -- e.what() returns e.c_str()
+ //--------------------------------------------
+
+ virtual const char * what () const throw ();
+
+
+ //--------------------------------------------------
+ // Convenient methods to change the exception's text
+ //--------------------------------------------------
+
+ BaseExc & assign (std::stringstream &s); // assign (s.str())
+ BaseExc & operator = (std::stringstream &s);
+
+ BaseExc & append (std::stringstream &s); // append (s.str())
+ BaseExc & operator += (std::stringstream &s);
+
+
+ //--------------------------------------------------
+ // These methods from the base class get obscured by
+ // the definitions above.
+ //--------------------------------------------------
+
+ BaseExc & assign (const char *s);
+ BaseExc & operator = (const char *s);
+
+ BaseExc & append (const char *s);
+ BaseExc & operator += (const char *s);
+
+
+ //--------------------------------------------------
+ // Stack trace for the point at which the exception
+ // was thrown. The stack trace will be an empty
+ // string unless a working stack-tracing routine
+ // has been installed (see below, setStackTracer()).
+ //--------------------------------------------------
+
+ const std::string & stackTrace () const;
+
+ private:
+
+ std::string _stackTrace;
+};
+
+
+//-----------------------------------------------------
+// A macro to save typing when declararing an exception
+// class derived directly or indirectly from BaseExc:
+//-----------------------------------------------------
+
+#define DEFINE_EXC(name, base) \
+ class name: public base \
+ { \
+ public: \
+ name (const char* text=0) throw(): base (text) {} \
+ name (const std::string &text) throw(): base (text) {} \
+ name (std::stringstream &text) throw(): base (text) {} \
+ };
+
+
+//--------------------------------------------------------
+// Some exceptions which should be useful in most programs
+//--------------------------------------------------------
+
+DEFINE_EXC (ArgExc, BaseExc) // Invalid arguments to a function call
+
+DEFINE_EXC (LogicExc, BaseExc) // General error in a program's logic,
+ // for example, a function was called
+ // in a context where the call does
+ // not make sense.
+
+DEFINE_EXC (InputExc, BaseExc) // Invalid input data, e.g. from a file
+
+DEFINE_EXC (IoExc, BaseExc) // Input or output operation failed
+
+DEFINE_EXC (MathExc, BaseExc) // Arithmetic exception; more specific
+ // exceptions derived from this class
+ // are defined in ExcMath.h
+
+DEFINE_EXC (ErrnoExc, BaseExc) // Base class for exceptions corresponding
+ // to errno values (see errno.h); more
+ // specific exceptions derived from this
+ // class are defined in ExcErrno.h
+
+DEFINE_EXC (NoImplExc, BaseExc) // Missing method exception e.g. from a
+ // call to a method that is only partially
+ // or not at all implemented. A reminder
+ // to lazy software people to get back
+ // to work.
+
+DEFINE_EXC (NullExc, BaseExc) // A pointer is inappropriately null.
+
+DEFINE_EXC (TypeExc, BaseExc) // An object is an inappropriate type,
+ // i.e. a dynamnic_cast failed.
+
+
+//----------------------------------------------------------------------
+// Stack-tracing support:
+//
+// setStackTracer(st)
+//
+// installs a stack-tracing routine, st, which will be called from
+// class BaseExc's constructor every time an exception derived from
+// BaseExc is thrown. The stack-tracing routine should return a
+// string that contains a printable representation of the program's
+// current call stack. This string will be stored in the BaseExc
+// object; the string is accesible via the BaseExc::stackTrace()
+// method.
+//
+// setStackTracer(0)
+//
+// removes the current stack tracing routine. When an exception
+// derived from BaseExc is thrown, the stack trace string stored
+// in the BaseExc object will be empty.
+//
+// stackTracer()
+//
+// returns a pointer to the current stack-tracing routine, or 0
+// if there is no current stack stack-tracing routine.
+//
+//----------------------------------------------------------------------
+
+typedef std::string (* StackTracer) ();
+
+void setStackTracer (StackTracer stackTracer);
+StackTracer stackTracer ();
+
+
+//-----------------
+// Inline functions
+//-----------------
+
+inline BaseExc &
+BaseExc::operator = (std::stringstream &s)
+{
+ return assign (s);
+}
+
+
+inline BaseExc &
+BaseExc::operator += (std::stringstream &s)
+{
+ return append (s);
+}
+
+
+inline BaseExc &
+BaseExc::assign (const char *s)
+{
+ std::string::assign(s);
+ return *this;
+}
+
+
+inline BaseExc &
+BaseExc::operator = (const char *s)
+{
+ return assign(s);
+}
+
+
+inline BaseExc &
+BaseExc::append (const char *s)
+{
+ std::string::append(s);
+ return *this;
+}
+
+
+inline BaseExc &
+BaseExc::operator += (const char *s)
+{
+ return append(s);
+}
+
+
+inline const std::string &
+BaseExc::stackTrace () const
+{
+ return _stackTrace;
+}
+
+#if (defined _WIN32 || defined _WIN64) && defined _MSC_VER
+#pragma warning(default:4290)
+#endif
+
+} // namespace Iex
+
+#endif
projects / opencv / blobdiff