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/* |
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* nvmemfun.hpp - Non-virtual member function wrappers |
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* |
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* Kheperix (C) 2003 Gwenole Beauchesne |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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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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* |
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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|
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#ifndef NVMEMFUN_H |
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#define NVMEMFUN_H |
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|
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#include <functional> |
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|
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#if defined __GNUC__ |
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#define HAVE_FAST_NV_MEM_FUN 1 |
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#define MEM_FUN_WORDS 2 |
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#if defined __GXX_ABI_VERSION /* GCC >= 3.0 */ |
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#define MEM_FUN_OFFSET 0 |
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#else |
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#define MEM_FUN_OFFSET 1 |
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#endif |
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#endif |
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|
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#if defined __ICC |
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#define HAVE_FAST_NV_MEM_FUN 1 |
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#define MEM_FUN_WORDS 2 |
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#define MEM_FUN_OFFSET 0 /* GNU C++ ABI v3 */ |
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#endif |
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|
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#if defined __EDG__ && defined __sgi |
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#define HAVE_FAST_NV_MEM_FUN 1 |
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#define MEM_FUN_WORDS 3 |
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#define MEM_FUN_OFFSET 2 |
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#endif |
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|
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#if HAVE_FAST_NV_MEM_FUN |
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|
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template< class PMF, class PF > |
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inline PF nv_mem_fun_of(PMF pmf) { |
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if (pmf == 0) |
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return 0; |
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union { PMF pmf; uintptr p[MEM_FUN_WORDS]; } x; |
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x.pmf = pmf; |
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return (PF)x.p[MEM_FUN_OFFSET]; |
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} |
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|
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template< class R, class T > |
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class nv_mem_fun_t : public std::unary_function<T, R> { |
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typedef R (T::*pmf_t)(); |
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typedef R (*pf_t)(T *); |
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pf_t pf; |
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public: |
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nv_mem_fun_t(pmf_t pmf) : pf(nv_mem_fun_of<pmf_t, pf_t>(pmf)) {} |
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R operator()(T *p) const { return (*pf)(p); } |
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pf_t ptr() const { return pf; } |
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}; |
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|
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template< class R, class T > |
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class const_nv_mem_fun_t : public std::unary_function<T, R> { |
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typedef R (T::*pmf_t)(); |
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typedef R (*pf_t)(T *); |
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pf_t const pf; |
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public: |
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const_nv_mem_fun_t(pmf_t const pmf) : pf(nv_mem_fun_of<pmf_t, pf_t>(pmf)) {} |
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R operator()(const T *p) const { return (*pf)(p); } |
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pf_t ptr() const { return pf; } |
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}; |
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|
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template< class R, class T, class A > |
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class nv_mem_fun1_t : public std::binary_function<T, A, R> { |
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typedef R (T::*pmf_t)(A); |
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typedef R (*pf_t)(T *, A x); |
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pf_t pf; |
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public: |
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nv_mem_fun1_t(pmf_t pmf) : pf(nv_mem_fun_of<pmf_t, pf_t>(pmf)) {} |
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R operator()(T *p, A x) const { return (*pf)(p, x); } |
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pf_t ptr() const { return pf; } |
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}; |
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|
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template< class R, class T, class A > |
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class const_nv_mem_fun1_t : public std::binary_function<T, A, R> { |
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typedef R (T::*pmf_t)(A); |
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typedef R (*pf_t)(T *, A x); |
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pf_t const pf; |
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public: |
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const_nv_mem_fun1_t(pmf_t const pmf) : pf(nv_mem_fun_of<pmf_t, pf_t>(pmf)) {} |
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R operator()(const T *p, A x) const { return (*pf)(p, x); } |
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pf_t ptr() const { return pf; } |
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}; |
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|
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#else |
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|
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template< class R, class T > |
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class nv_mem_fun_t : public std::unary_function<T, R> { |
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typedef R (T::*pmf_t)(); |
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pmf_t pf; |
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public: |
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nv_mem_fun_t(R (T::*pmf)()) : pf(pmf) {} |
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R operator()(T *p) const { return (p->*pf)(); } |
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pmf_t ptr() const { return pf; } |
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}; |
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|
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template< class R, class T > |
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class const_nv_mem_fun_t : public std::unary_function<T, R> { |
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typedef R (T::*pmf_t)() const; |
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pmf_t pf; |
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public: |
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const_nv_mem_fun_t(R (T::*pmf)() const) : pf(pmf) {} |
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R operator()(const T *p) const { return (p->*pf)(); } |
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pmf_t ptr() const { return pf; } |
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}; |
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|
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template< class R, class T, class A > |
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class nv_mem_fun1_t : public std::binary_function<T, A, R> { |
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typedef R (T::*pmf_t)(A); |
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pmf_t pf; |
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public: |
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nv_mem_fun1_t(R (T::*pmf)(A)) : pf(pmf) {} |
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R operator()(T *p, A x) const { return (p->*pf)(x); } |
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pmf_t ptr() const { return pf; } |
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}; |
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|
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template< class R, class T, class A > |
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class const_nv_mem_fun1_t : public std::binary_function<T, A, R> { |
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typedef R (T::*pmf_t)(A) const; |
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pmf_t pf; |
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public: |
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const_nv_mem_fun1_t(R (T::*pmf)(A) const) : pf(pmf) {} |
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R operator()(const T *p, A x) const { return (p->*pf)(x); } |
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pmf_t ptr() const { return pf; } |
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}; |
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|
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#endif |
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|
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template< class R, class T > |
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inline nv_mem_fun_t<R, T> nv_mem_fun(R (T::*pmf)()) { |
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return nv_mem_fun_t<R, T>(pmf); |
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} |
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|
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template< class R, class T > |
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inline const_nv_mem_fun_t<R, T> nv_mem_fun(R (T::*pmf)() const) { |
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return const_nv_mem_fun_t<R, T>(pmf); |
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} |
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|
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template< class R, class T, class A > |
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inline nv_mem_fun1_t<R, T, A> nv_mem_fun(R (T::*pmf)(A)) { |
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return nv_mem_fun1_t<R, T, A>(pmf); |
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} |
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|
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template< class R, class T, class A > |
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inline const_nv_mem_fun1_t<R, T, A> nv_mem_fun(R (T::*pmf)(A) const) { |
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return const_nv_mem_fun1_t<R, T, A>(pmf); |
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} |
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|
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#endif /* NVMEMFUN_H */ |
