From bea7fc3aca340fd1e55c1de5ffaa8571261fa933 Mon Sep 17 00:00:00 2001
From: Karthikeyan Natarajan <karthikeyann@users.noreply.github.com>
Date: Tue, 15 Nov 2022 04:57:54 +0530
Subject: [PATCH] replace std::nullopt

---
 cpp/src/io/utilities/parsing_utils.cuh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cpp/src/io/utilities/parsing_utils.cuh b/cpp/src/io/utilities/parsing_utils.cuh
index 6c5c817eb02..a78700db484 100644
--- a/cpp/src/io/utilities/parsing_utils.cuh
+++ b/cpp/src/io/utilities/parsing_utils.cuh
@@ -237,7 +237,7 @@ __host__ __device__ std::optional<T> parse_numeric(char const* begin,
       if (exponent != 0) { value *= exp10(double(exponent * exponent_sign)); }
     }
   }
-  if (!all_digits_valid) { return std::nullopt; }
+  if (!all_digits_valid) { return std::optional<T>{}; }
 
   return value * sign;
 }