Fix fill() for FP data type in fixtures - Part 1

Resolves: COMPMID-4050

Signed-off-by: Giorgio Arena <giorgio.arena@arm.com>
Change-Id: I182548bf4b944c499a7134ac005b137877e61baf
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/4700
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>

1 files changed, 7 insertions, 5 deletions

diff --git a/support/Random.h b/support/Random.h
index c8b767e505..d5d372dc82 100644
--- a/support/Random.h
+++ b/support/Random.h
@@ -25,6 +25,7 @@
 #define ARM_COMPUTE_MISC_RANDOM_H
 
 #include "arm_compute/core/Error.h"
+#include "utils/Utils.h"
 
 #include <random>
 #include <type_traits>
@@ -43,13 +44,14 @@ template <typename T>
 class RangedUniformDistribution
 {
 public:
-    using DT = typename std::conditional<std::is_integral<T>::value,
-          std::uniform_int_distribution<T>,
-          std::uniform_real_distribution<float>>::type;
+    static constexpr bool is_half     = std::is_same<T, half>::value;
+    static constexpr bool is_integral = std::is_integral<T>::value && !is_half;
+
+    using fp_dist     = typename std::conditional<is_half, arm_compute::utils::uniform_real_distribution_fp16, std::uniform_real_distribution<T>>::type;
+    using DT          = typename std::conditional<is_integral, std::uniform_int_distribution<T>, fp_dist>::type;
     using result_type = T;
     using range_pair  = std::pair<result_type, result_type>;
 
-public:
     /** Constructor
      *
      * @param[in] low            lowest value in the range (inclusive)
@@ -62,7 +64,7 @@ public:
         result_type clow = low;
         for(const auto &erange : exclude_ranges)
         {
-            result_type epsilon = std::is_integral<result_type>::value ? 1 : static_cast<result_type>(std::numeric_limits<float>::epsilon());
+            result_type epsilon = is_integral ? result_type(1) : result_type(std::numeric_limits<T>::epsilon());
 
             ARM_COMPUTE_ERROR_ON(clow > erange.first || clow >= erange.second);