Fixed build issues and missing function for AVX512FP16 vector type

Author: sterrettm2

src/avx512fp16-16bit-qsort.hpp

@@ -55,6 +55,10 @@ struct zmm_vector<_Float16> {
     {
         return _mm512_cmp_ph_mask(x, y, _CMP_GE_OQ);
     }
+    static opmask_t eq(reg_t x, reg_t y)
+    {
+        return _mm512_cmp_ph_mask(x, y, _CMP_EQ_OQ);
+    }
     static opmask_t get_partial_loadmask(uint64_t num_to_read)
     {
         return ((0x1ull << num_to_read) - 0x1ull);

src/xss-pivot-selection.hpp

@@ -37,7 +37,7 @@ type_t next_value(type_t value){
 template <typename vtype, typename mm_t>
 X86_SIMD_SORT_INLINE void COEX(mm_t &a, mm_t &b);
 
-template <typename vtype, typename T = typename vtype::type_t>
+template <typename vtype, typename T>
 X86_SIMD_SORT_INLINE bool comparison_func(const T &a, const T &b);
 
 template <typename vtype, typename type_t>