Ichthyostega
8b6177a1c5
This is the first step towards a generic backbone to connect any GUI elements to the session within Proc-Layer. It is based on a spefic understanding of Model-View-Controller, which turns the Model-Controller interactions into messages.
131 lines
4.3 KiB
C++
131 lines
4.3 KiB
C++
/*
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Test-Helper - collection of functions supporting unit testing
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Copyright (C) Lumiera.org
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2009, Hermann Vosseler <Ichthyostega@web.de>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of
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the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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* *****************************************************/
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#include "lib/test/test-helper.hpp"
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#include "lib/test/testdummy.hpp"
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#include "lib/format-string.hpp"
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#include "lib/unique-malloc-owner.hpp"
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#ifdef __GNUG__
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#include <cxxabi.h>
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#endif
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#include <string>
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using std::string;
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namespace lib {
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namespace test{
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string
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showSizeof (size_t siz, const char* name)
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{
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static util::_Fmt fmt ("sizeof( %s ) %|30t|= %3d");
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return string (fmt % (name? name:"?") % siz);
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}
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#ifdef __GNUG__
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/**
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* \par Implementation notes
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* GCC / G++ subscribes to a cross-vendor ABI for C++, sometimes called the IA64 ABI
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* because it happens to be the native ABI for that platform. It is summarised at
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* \link http://www.codesourcery.com/cxx-abi/ mentor-embedded \endlink
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* along with the current specification. For users of GCC greater than or equal to 3.x,
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* entry points are exposed through the standard library in \c <cxxabi.h>
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*
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* This implementation relies on a vendor neutral ABI for C++ compiled programs
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*
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* char* abi::__cxa_demangle(const char* mangled_name,
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* char* output_buffer, size_t* length,
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* int* status)
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*
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* Parameters:
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* - \c mangled_name
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* NUL-terminated character string containing the name to be demangled.
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* - \c output_buffer
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* region of memory, allocated with \c malloc, of `*length` bytes,
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* into which the demangled name is stored. If \c output_buffer is not long enough,
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* it is expanded using \c realloc. output_buffer may instead be NULL; in that case,
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* the demangled name is placed in a region of memory allocated with \c malloc.
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* - \c length
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* If length is non-NULL, the length of the buffer containing the demangled name is placed in `*length`.
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* - \c status
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* error flag: `*status` is set to one of the following values:
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*
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* 0: The demangling operation succeeded.
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* -1: A memory allocation failure occurred.
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* -2: mangled_name is not a valid name under the C++ ABI mangling rules.
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* -3: One of the arguments is invalid.
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*
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* The function returns a pointer to the start of the NUL-terminated demangled name,
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* or NULL if the demangling fails. The caller is responsible for deallocating
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* this memory using \c free.
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*/
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string
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demangleCxx (Literal rawName)
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{
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int error = -4;
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UniqueMallocOwner<char> demangled (abi::__cxa_demangle (rawName,
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NULL,
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NULL,
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&error));
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return 0==error? demangled.get()
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: string(rawName);
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}
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#else
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string
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demangleCxx (Literal rawName)
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{
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return string (rawName);
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}
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#endif
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/** @todo probably this can be done in a more clever way. Anyone...?
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*/
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string
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randStr (size_t len)
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{
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static const string alpha ("aaaabbccddeeeeffgghiiiijjkkllmmnnooooppqqrrssttuuuuvvwwxxyyyyzz0123456789");
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static const size_t MAXAL (alpha.size());
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string garbage(len,'\0');
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size_t p = len;
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while (p)
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garbage[--p] = alpha[rand() % MAXAL];
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return garbage;
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}
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/** storage for test-dummy flags */
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long Dummy::_local_checksum = 0;
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bool Dummy::_throw_in_ctor = false;
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}} // namespace lib::test
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