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Throw std::bad_alloc even when exceptions are disabled, by doing new int[size_t(-1)].

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Don't throw exceptions on aligned_malloc(0) (just because malloc's retval is null doesn't mean error, if size==0).
Remove EIGEN_NO_EXCEPTIONS option, use only compiler standard defines. Either exceptions are enabled or they aren't.
This commit is contained in:
Benoit Jacob
2011-10-17 08:44:44 -04:00
parent dcbc985a28
commit 16b638c159
3 changed files with 32 additions and 35 deletions
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21
Eigen/src/Core/PlainObjectBase.h
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@@ -37,19 +37,14 @@ namespace internal {
template<typename Index>
void check_rows_cols_for_overflow(Index rows, Index cols)
{
#ifdef EIGEN_EXCEPTIONS
// http://hg.mozilla.org/mozilla-central/file/6c8a909977d3/xpcom/ds/CheckedInt.h#l242
// we assume Index is signed
Index max_index = (size_t(1) << (8 * sizeof(Index) - 1)) - 1; // assume Index is signed
bool error = (rows < 0 || cols < 0) ? true
: (rows == 0 || cols == 0) ? false
: (rows > max_index / cols);
if (error)
throw std::bad_alloc();
#else
(void) rows;
(void) cols;
#endif
// http://hg.mozilla.org/mozilla-central/file/6c8a909977d3/xpcom/ds/CheckedInt.h#l242
// we assume Index is signed
Index max_index = (size_t(1) << (8 * sizeof(Index) - 1)) - 1; // assume Index is signed
bool error = (rows < 0 || cols < 0) ? true
: (rows == 0 || cols == 0) ? false
: (rows > max_index / cols);
if (error)
throw_std_bad_alloc();
}
template <typename Derived, typename OtherDerived = Derived, bool IsVector = static_cast<bool>(Derived::IsVectorAtCompileTime)> struct conservative_resize_like_impl;