Update CAST fp to int rounding

Use rint() instead of round() to get round to nearest even behavior

Signed-off-by: Eric Kunze <eric.kunze@arm.com>
Change-Id: I45957be0e863de2207850b023626a7c0ea11e5eb

1 files changed, 2 insertions, 2 deletions

diff --git a/reference_model/src/ops/type_conversion.cc b/reference_model/src/ops/type_conversion.cc
index dbedbad..a3140c3 100644
--- a/reference_model/src/ops/type_conversion.cc
+++ b/reference_model/src/ops/type_conversion.cc
@@ -350,7 +350,7 @@ CastHelper<DType_FP16, OutDtype>::CastHelper()
     fcn = [](float in) -> OutEigenType {
         // Cast from float representation back to half_float before rounding
         half_float::half h = half_float::half(in);
-        h = std::round(h);
+        h = std::rint(h);
         OutEigenType out = half_float::half_cast<OutEigenType, half_float::half>(h);
         out              = std::max<OutEigenType>(out, OutMin);
         out              = std::min<OutEigenType>(out, OutMax);
@@ -401,7 +401,7 @@ CastHelper<DType_FP32, OutDtype>::CastHelper()
 {
     // fp32 data converted to integer
     fcn = [](float in) -> OutEigenType {
-        OutEigenType out = std::round(in);
+        OutEigenType out = std::rint(in);
         out              = std::max<OutEigenType>(out, OutMin);
         out              = std::min<OutEigenType>(out, OutMax);
         return out;