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FreeBSD: determine precisely when malloc is 16-byte aligned

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This commit is contained in:
Benoit Jacob 2009-06-29 00:08:34 +02:00
parent 5eabf2b75d
commit bf91003d37
1 changed files with 11 additions and 1 deletions
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12
Eigen/src/Core/util/Memory.h
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@ -27,7 +27,17 @@
#ifndef EIGEN_MEMORY_H
#define EIGEN_MEMORY_H
#if defined(__APPLE__) || defined(_WIN64) || defined (__FreeBSD__)
// FreeBSD 6 seems to have 16-byte aligned malloc
// See http://svn.freebsd.org/viewvc/base/stable/6/lib/libc/stdlib/malloc.c?view=markup
// FreeBSD 7 seems to have 16-byte aligned malloc except on ARM and MIPS architectures
// See http://svn.freebsd.org/viewvc/base/stable/7/lib/libc/stdlib/malloc.c?view=markup
#if defined(__FreeBSD__) && !defined(__arm__) && !defined(__mips__)
#define EIGEN_FREEBSD_MALLOC_ALREADY_ALIGNED 1
#else
#define EIGEN_FREEBSD_MALLOC_ALREADY_ALIGNED 0
#endif
#if defined(__APPLE__) || defined(_WIN64) || EIGEN_FREEBSD_MALLOC_ALREADY_ALIGNED
#define EIGEN_MALLOC_ALREADY_ALIGNED 1
#else
#define EIGEN_MALLOC_ALREADY_ALIGNED 0