mirror of
https://github.com/Open-Cascade-SAS/OCCT.git
synced 2026-08-25 12:02:34 +08:00
Pasukhin Dmitry
e1d36343e4
First patch in iterative renovation of exceptions. - Simplify exception classes to be container of data only. - Removed redundant inclusion of <Standard_Type.hxx> in various header files across the project. - Removed Set methods for failure and its define template. - Removed Raise and Rerise static methods. - Remove Instance and Throw methods - Deprecated getting message with old approach, and moving to what() - Update ErrorHandler to handle only specific list of exceptions.
64 lines
2.5 KiB
C++
64 lines
2.5 KiB
C++
// Created on: 1991-09-05
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// Created by: J.P. TIRAUlt
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// Copyright (c) 1991-1999 Matra Datavision
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _Standard_OutOfMemory_HeaderFile
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#define _Standard_OutOfMemory_HeaderFile
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#include <Standard_ProgramError.hxx>
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#include <memory>
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#if !defined No_Exception && !defined No_Standard_OutOfMemory
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#define Standard_OutOfMemory_Raise_if(CONDITION, MESSAGE) \
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if (CONDITION) \
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throw Standard_OutOfMemory(MESSAGE);
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#else
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#define Standard_OutOfMemory_Raise_if(CONDITION, MESSAGE)
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#endif
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//! Standard_OutOfMemory exception is defined explicitly and not by
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//! macro DEFINE_STANDARD_EXCEPTION, to avoid necessity of dynamic
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//! memory allocations during throwing and stack unwinding:
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//!
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//! - message string is stored as field, not allocated dynamically
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//! (storable message length is limited by buffer size)
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//!
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//! The reason is that in out-of-memory condition any memory allocation can
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//! fail, thus use of operator new for allocation of new exception instance
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//! is dangerous (can cause recursion until stack overflow, see #24836).
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class Standard_OutOfMemory : public Standard_ProgramError
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{
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public:
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//! Constructor is kept public for backward compatibility.
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//! @param theMessage optional error message
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Standard_EXPORT Standard_OutOfMemory(const char* theMessage = nullptr);
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//! Returns error message (implements std::exception interface).
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Standard_EXPORT const char* what() const noexcept override;
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//! Returns the exception type name.
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const char* ExceptionType() const noexcept override { return "Standard_OutOfMemory"; }
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//! Sets error message.
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//! @param theMessage error message (can be nullptr)
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Standard_EXPORT void SetMessageString(const char* theMessage);
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private:
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char myBuffer[1024];
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};
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#endif // _Standard_OutOfMemory_HeaderFile
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