From d4c08a3d9ac6caaa8b247874d15304c810eac831 Mon Sep 17 00:00:00 2001
From: Ishwar Bhati <ishwar.s.bhati@intel.com>
Date: Tue, 9 Sep 2025 17:14:41 -0700
Subject: [PATCH 1/2] Add functions to check NaN values in data span

---
 include/svs/lib/misc.h | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/include/svs/lib/misc.h b/include/svs/lib/misc.h
index 7ebe48a5..f08ae8e8 100644
--- a/include/svs/lib/misc.h
+++ b/include/svs/lib/misc.h
@@ -443,4 +443,20 @@ template <std::integral T> constexpr T bitmask(T lo, T hi) {
 
 using DefaultPredicate = std::function<bool()>;
 
+///
+/// Returns true if at least one element of the span is NaN.
+///
+template <typename T, size_t N>
+bool contains_nan(std::span<const T, N> data) {
+    return std::ranges::any_of(data, [](T v) { return std::isnan(v); });
+}
+
+///
+/// Returns true if all elements of the span are NaN.
+///
+template <typename T, size_t N>
+bool all_nan(std::span<const T, N> data) {
+    return std::ranges::all_of(data, [](T v) { return std::isnan(v); });
+}
+
 } // namespace svs::lib

From 65f66aa54b13113d4f4932b0eb0b6985fcbb4522 Mon Sep 17 00:00:00 2001
From: Ishwar Bhati <ishwar.s.bhati@intel.com>
Date: Wed, 10 Sep 2025 07:04:37 -0700
Subject: [PATCH 2/2] Use std any_of/all_of instead of ranges

---
 include/svs/lib/misc.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/svs/lib/misc.h b/include/svs/lib/misc.h
index f08ae8e8..6a38a2e0 100644
--- a/include/svs/lib/misc.h
+++ b/include/svs/lib/misc.h
@@ -448,7 +448,7 @@ using DefaultPredicate = std::function<bool()>;
 ///
 template <typename T, size_t N>
 bool contains_nan(std::span<const T, N> data) {
-    return std::ranges::any_of(data, [](T v) { return std::isnan(v); });
+    return std::any_of(data.begin(), data.end(), [](T v) { return std::isnan(v); });
 }
 
 ///
@@ -456,7 +456,7 @@ bool contains_nan(std::span<const T, N> data) {
 ///
 template <typename T, size_t N>
 bool all_nan(std::span<const T, N> data) {
-    return std::ranges::all_of(data, [](T v) { return std::isnan(v); });
+    return std::all_of(data.begin(), data.end(), [](T v) { return std::isnan(v); });
 }
 
 } // namespace svs::lib