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author | Peter Diener <diener@cct.lsu.edu> | 2013-04-29 14:25:24 -0500 |
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committer | Peter Diener <diener@cct.lsu.edu> | 2013-04-29 14:25:24 -0500 |
commit | d2265e829d3e1f3f9ab19bd5b805b82c7f79942f (patch) | |
tree | 773f1f0e8ff65aed03403e08107dad1a8a0f85e1 /Carpet/CarpetLib | |
parent | 8b5e709c59ac6435721849d0f05a41f2505ce2b0 (diff) | |
parent | 8c63348a8570b61f802fd366812c74b6d5a6153e (diff) |
Merge branch 'master' of carpetgit@carpetcode.org:carpet
Diffstat (limited to 'Carpet/CarpetLib')
-rw-r--r-- | Carpet/CarpetLib/src/mem.cc | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/Carpet/CarpetLib/src/mem.cc b/Carpet/CarpetLib/src/mem.cc index 89d8fb211..df374ae3e 100644 --- a/Carpet/CarpetLib/src/mem.cc +++ b/Carpet/CarpetLib/src/mem.cc @@ -105,6 +105,7 @@ mem (size_t const vectorlength, size_t const nelems, size_t const max_cache_linesize = get_max_cache_linesize(); size_t const vector_size = CCTK_REAL_VEC_SIZE * sizeof(T); size_t const alignment = align_up(max_cache_linesize, vector_size); + assert(alignment >= 1); // Safety check assert(alignment <= 1024); // Assume optimistically that operator new returns well-aligned @@ -123,7 +124,8 @@ mem (size_t const vectorlength, size_t const nelems, } else { allocate_with_alignment: // Operator new needs manual alignment - size_t const max_padding = alignment / sizeof(T) - 1; + size_t const max_padding = div_up(alignment, sizeof(T)); + assert(ptrdiff_t(max_padding) >= 0); storage_base_ = new T [vectorlength * nelems + max_padding]; storage_ = (T*) (size_t(storage_base_ + max_padding) & ~(alignment-1)); assert(size_t(storage_) >= size_t(storage_base_ ) and |