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CGoGN
CGoGN
Commits
6dbae9b2
Commit
6dbae9b2
authored
Dec 05, 2012
by
Sylvain Thery
Browse files
add easy type conversion
parent
0db0b7b1
Changes
1
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Inline
Side-by-side
include/Utils/convertType.h
0 → 100644
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6dbae9b2
/*******************************************************************************
* CGoGN: Combinatorial and Geometric modeling with Generic N-dimensional Maps *
* version 0.1 *
* Copyright (C) 2009-2012, IGG Team, LSIIT, University of Strasbourg *
* *
* This library is free software; you can redistribute it and/or modify it *
* under the terms of the GNU Lesser General Public License as published by the *
* Free Software Foundation; either version 2.1 of the License, or (at your *
* option) any later version. *
* *
* This library is distributed in the hope that it will be useful, but WITHOUT *
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or *
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License *
* for more details. *
* *
* You should have received a copy of the GNU Lesser General Public License *
* along with this library; if not, write to the Free Software Foundation, *
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
* *
* Web site: http://cgogn.unistra.fr/ *
* Contact information: cgogn@unistra.fr *
* *
*******************************************************************************/
#ifndef __CONVERTTYPE_H_
#define __CONVERTTYPE_H_
#include
<assert.h>
namespace
CGoGN
{
namespace
Utils
{
/**
* Create a ref to a type from a ref from another type
* No copy only casting. No need to used IN template parameter
* @param vec input ref
* @ return a ref on same object with OUT type
*/
template
<
typename
OUT
,
typename
IN
>
inline
OUT
&
convertRef
(
IN
&
vec
)
{
assert
(
sizeof
(
IN
)
==
sizeof
(
OUT
)
||
"incompatible size cast"
);
return
*
(
reinterpret_cast
<
OUT
*>
(
&
vec
));
}
/**
* Create a const ref to a type from a const ref from another type
* No copy only casting. No need to used IN template parameter
* @param vec input ref
* @ return a ref on same object with OUT type
*/
template
<
typename
OUT
,
typename
IN
>
inline
const
OUT
&
convertRef
(
const
IN
&
vec
)
{
assert
(
sizeof
(
IN
)
==
sizeof
(
OUT
)
||
"incompatible size cast"
);
return
*
(
reinterpret_cast
<
const
OUT
*>
(
&
vec
));
}
/**
* Create a ptr of a type from a ptr of another type
* Just a reinterpret cast in fact
* @param vec input ptr
* @return a ptr on same object with OUT type
*/
template
<
typename
OUT
,
typename
IN
>
inline
OUT
*
convertPtr
(
IN
*
vec
)
{
assert
(
sizeof
(
IN
)
==
sizeof
(
OUT
)
||
"incompatible size cast"
);
return
reinterpret_cast
<
OUT
*>
(
vec
);
}
/**
* Create a const ptr of a type from a const ptr of another type
* Just a reinterpret cast in fact
* @param vec input ptr
* @return a ptr on same object with OUT type
*/
template
<
typename
OUT
,
typename
IN
>
inline
const
OUT
*
convertPtr
(
const
IN
*
vec
)
{
assert
(
sizeof
(
IN
)
==
sizeof
(
OUT
)
||
"incompatible size cast"
);
return
reinterpret_cast
<
const
OUT
*>
(
vec
);
}
}
// namespace Utils
}
// namespace CGoGN
#endif
/* CONVERTTYPE_H_ */
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