Update documentation

1 files changed, 4 insertions, 3 deletions

diff --git a/adv-simd.h b/adv-simd.h
index e86c12ba..54eec0f1 100644
--- a/adv-simd.h
+++ b/adv-simd.h
@@ -494,12 +494,13 @@ inline size_t AdvancedProcessBlocks128_NEON1x6(F1 func1, F6 func6,
 /// \tparam F1 function to process 1 128-bit block

 /// \tparam F4 function to process 4 128-bit blocks

 /// \tparam W word type of the subkey table

-/// \tparam V vector type of the NEON data type

-/// \details AdvancedProcessBlocks128_6x2_NEON processes 4 and 1 NEON SIMD words

+/// \tparam V vector type of the NEON datatype

+/// \details AdvancedProcessBlocks128_4x1_NEON processes 4 and 1 NEON SIMD words

 ///   at a time.

 /// \details The subkey type is usually word32 or word64. V is the vector type and it is

 ///   usually uint32x4_t or uint64x2_t. F1, F4, W and V must use the same word and

-///   vector type.

+///   vector type. The V parameter is used to avoid template argument

+///   deduction/substitution failures.

 template <typename F1, typename F4, typename W, typename V>

 inline size_t AdvancedProcessBlocks128_4x1_NEON(F1 func1, F4 func4,

             const V& unused, const W *subKeys, size_t rounds, const byte *inBlocks,