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// SPDX-FileCopyrightText: 2023-2025, Alejandro Colomar <alx@kernel.org>
// SPDX-License-Identifier: BSD-3-Clause
#ifndef SHADOW_INCLUDE_LIB_ALLOC_REALLOCF_H_
#define SHADOW_INCLUDE_LIB_ALLOC_REALLOCF_H_
#include "config.h"
#include <stddef.h>
#include <stdlib.h>
#include "attr.h"
#include "sizeof.h"
// reallocf_T - realloc free-on-error type-safe
#define reallocf_T(p, n, T) reallocf_T_(p, n, typeas(T))
#define reallocf_T_(p, n, T) \
({ \
_Generic(p, T *: (void)0); \
(T *){reallocarrayf_(p, n, sizeof(T))}; \
})
#define reallocarrayf_(p, n, size) reallocarrayf(p, (n) ?: 1, (size) ?: 1)
// reallocarrayf - realloc array free-on-error
ATTR_ALLOC_SIZE(2, 3)
ATTR_MALLOC(free)
inline void *reallocarrayf(void *p, size_t nmemb, size_t size);
inline void *
reallocarrayf(void *p, size_t nmemb, size_t size)
{
void *q;
q = reallocarray(p, nmemb ?: 1, size ?: 1);
if (q == NULL)
free(p);
return q;
}
#endif // include guard
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