ba3a51e90f
Suggested-by: Martin Uecker <uecker@tugraz.at> Signed-off-by: Alejandro Colomar <alx@kernel.org>
43 lines
909 B
C
43 lines
909 B
C
// SPDX-FileCopyrightText: 2023-2024, Alejandro Colomar <alx@kernel.org>
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// SPDX-License-Identifier: BSD-3-Clause
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#ifndef SHADOW_INCLUDE_LIB_ALLOC_REALLOCF_H_
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#define SHADOW_INCLUDE_LIB_ALLOC_REALLOCF_H_
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#include <config.h>
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#include <stddef.h>
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#include <stdlib.h>
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#include "attr.h"
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#define REALLOCF(ptr, n, type) \
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( \
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_Generic(ptr, type *: (type *) reallocarrayf(ptr, n, sizeof(type))) \
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)
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ATTR_ALLOC_SIZE(2, 3)
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ATTR_MALLOC(free)
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inline void *reallocarrayf(void *p, size_t nmemb, size_t size);
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inline void *
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reallocarrayf(void *p, size_t nmemb, size_t size)
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{
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void *q;
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q = reallocarray(p, nmemb, size);
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/* realloc(p, 0) is equivalent to free(p); avoid double free. */
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if (q == NULL && nmemb != 0 && size != 0)
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free(p);
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return q;
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}
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#endif // include guard
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