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urbaneks |
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/*
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* R : A Computer Language for Statistical Data Analysis
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luke |
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* Copyright (C) 2014-2026 The R Core Team
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urbaneks |
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*
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plummer |
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* This header file is free software; you can redistribute it and/or modify
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urbaneks |
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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plummer |
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* This file is part of R. R is distributed under the terms of the
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* GNU General Public License, either Version 2, June 1991 or Version 3,
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* June 2007. See doc/COPYRIGHTS for details of the copyright status of R.
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*
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urbaneks |
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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 Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, a copy is available at
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ripley |
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* https://www.R-project.org/Licenses/
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urbaneks |
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*
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*
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* Definition of the R_allocator_t structure for custom allocators
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* to be used with allocVector3()
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ripley |
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*
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ripley |
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* allocVector3 is also not declared as API in
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luke |
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* Rinternals.h nor documented in R-exts.
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urbaneks |
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*/
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#ifndef R_EXT_RALLOCATORS_H_
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#define R_EXT_RALLOCATORS_H_
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ripley |
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#if defined(__cplusplus) && !defined(DO_NOT_USE_CXX_HEADERS)
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# include <cstddef>
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ripley |
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#else
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ripley |
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# include <stddef.h> /* for size_t */
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urbaneks |
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#endif
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/* R_allocator_t typedef is also declared in Rinternals.h
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so we guard against random inclusion order */
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#ifndef R_ALLOCATOR_TYPE
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#define R_ALLOCATOR_TYPE
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typedef struct R_allocator R_allocator_t;
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#endif
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typedef void *(*custom_alloc_t)(R_allocator_t *allocator, size_t);
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typedef void (*custom_free_t)(R_allocator_t *allocator, void *);
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struct R_allocator {
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custom_alloc_t mem_alloc; /* malloc equivalent */
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custom_free_t mem_free; /* free equivalent */
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void *res; /* reserved (maybe for copy) - must be NULL */
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void *data; /* custom data for the allocator implementation */
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};
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#endif /* R_EXT_RALLOCATORS_H_ */
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