From 28c5a93f4afd4e179efd2235eaebe1d8f0c12774 Mon Sep 17 00:00:00 2001 From: Nehal J Wani Date: Mon, 11 Jun 2018 19:57:24 +0000 Subject: [PATCH] Implement aligned_alloc using posix_memaligned --- stdlib/stdlib.h | 14 +++++++++++ 1 file changed, 14 insertions(+) diff --git a/stdlib/stdlib.h b/stdlib/stdlib.h index d1f3841f1b..051495db85 100644 --- a/binary-glibc-headers/include/stdlib.h +++ b/binary-glibc-headers/include/stdlib.h @@ -507,6 +507,20 @@ /* Allocate memory of SIZE bytes with an alignment of ALIGNMENT. */ extern int posix_memalign (void **__memptr, size_t __alignment, size_t __size) __THROW __nonnull ((1)) __wur; +#if defined __cplusplus +extern "C" { static inline void* aligned_alloc (size_t al, size_t sz); } +#endif +static inline void* aligned_alloc (size_t al, size_t sz) +{ + void *ptr = NULL; + // The value of alignment shall be a power of two multiple of sizeof(void *). + if (al < sizeof(void*)) + al = sizeof(void*); + int ret = posix_memalign (&ptr, al, sz); + if (ret == 0) + return ptr; + return NULL; +} #endif __BEGIN_NAMESPACE_STD