westonpace commented on code in PR #35565:
URL: https://github.com/apache/arrow/pull/35565#discussion_r1199261307
##########
cpp/src/arrow/util/align_util.h:
##########
@@ -70,8 +70,26 @@ inline BitmapWordAlignParams BitmapWordAlign(const uint8_t*
data, int64_t bit_of
namespace util {
// Functions to check if the provided Arrow object is aligned by the specified
alignment
+
+/// \brief if this is specified in one of the CheckAlignment or
EnsureAlignment functions
+/// then the funciton will ensure each buffer is suitably aligned for the data
type of the
+/// array. For example, given an int32 buffer the validity buffer must be a
multiple of 8
+/// and the values buffer must be a multiple of 32. Given a large_string
buffer the
+/// validity buffer and values buffers must be multiples of 8 and the offsets
buffer must
+/// be a multiple of 64.
+constexpr int64_t kMallocAlignment = -3;
Review Comment:
I've named it `kValueAlignment` and have changed references to this kind of
alignment as "value aligned".
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