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merge with default branch

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This commit is contained in:
Gael Guennebaud
2014-07-10 22:04:45 +02:00
parent 61b88d2feb d1460d9278
commit 296cb40161
49 changed files with 263 additions and 167 deletions
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9
Eigen/src/Core/util/Memory.h
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@@ -607,12 +607,9 @@ template<typename T> class aligned_stack_memory_handler
* The underlying stack allocation function can controlled with the EIGEN_ALLOCA preprocessor token.
*/
#ifdef EIGEN_ALLOCA
// The native alloca() that comes with llvm aligns buffer on 16 bytes even when AVX is enabled.
#if defined(__arm__) || defined(_WIN32) || EIGEN_ALIGN_BYTES > 16
#define EIGEN_ALIGNED_ALLOCA(SIZE) reinterpret_cast<void*>((reinterpret_cast<size_t>(EIGEN_ALLOCA(SIZE+EIGEN_ALIGN_BYTES)) & ~(size_t(EIGEN_ALIGN_BYTES-1))) + EIGEN_ALIGN_BYTES)
#else
#define EIGEN_ALIGNED_ALLOCA EIGEN_ALLOCA
#endif
// We always manually re-align the result of EIGEN_ALLOCA.
// If alloca is already aligned, the compiler should be smart enough to optimize away the re-alignment.
#define EIGEN_ALIGNED_ALLOCA(SIZE) reinterpret_cast<void*>((reinterpret_cast<size_t>(EIGEN_ALLOCA(SIZE+EIGEN_ALIGN_BYTES-1)) + EIGEN_ALIGN_BYTES-1) & ~(size_t(EIGEN_ALIGN_BYTES-1)))
#define ei_declare_aligned_stack_constructed_variable(TYPE,NAME,SIZE,BUFFER) \
Eigen::internal::check_size_for_overflow<TYPE>(SIZE); \

19
Eigen/src/Core/util/Meta.h
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@@ -80,6 +80,25 @@ template<typename T> struct add_const_on_value_type<T*> { typedef T const
template<typename T> struct add_const_on_value_type<T* const> { typedef T const* const type; };
template<typename T> struct add_const_on_value_type<T const* const> { typedef T const* const type; };
template<typename From, typename To>
struct is_convertible
{
private:
struct yes {int a[1];};
struct no {int a[2];};
template<typename T>
static yes test (const T&) {}
template<typename> static no test (...) {}
public:
static From ms_from;
enum { value = sizeof(test<To>(ms_from))==sizeof(yes) };
};
/** \internal Allows to enable/disable an overload
* according to a compile time condition.
*/