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3de69c9668
The 'T' in the name notes that this API is a type-safe variant of the API it wraps. This makes the names more explicative. Signed-off-by: Alejandro Colomar <alx@kernel.org>
49 lines
1.1 KiB
C
49 lines
1.1 KiB
C
// SPDX-FileCopyrightText: 2023-2025, 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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#include "sizeof.h"
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// reallocf_T - realloc free-on-error type-safe
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#define reallocf_T(p, n, T) reallocf_T_(p, n, typeas(T))
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#define reallocf_T_(p, n, T) \
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({ \
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_Generic(p, T *: (void)0); \
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(T *){reallocarrayf_(p, n, sizeof(T))}; \
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})
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#define reallocarrayf_(p, n, size) reallocarrayf(p, (n) ?: 1, (size) ?: 1)
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// reallocarrayf - realloc array free-on-error
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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 ?: 1, size ?: 1);
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if (q == NULL)
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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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