From 5e6872740d39033094823eedbca7bf110e3720da Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Date: Tue, 25 Feb 2025 01:08:12 +0200
Subject: libcamera: base: signal: Drop pre-C++17 support

The libcamera public API requires C++17, drop support for older
standards.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
---
 include/libcamera/base/signal.h | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/include/libcamera/base/signal.h b/include/libcamera/base/signal.h
index bbff1495..ed1d81ea 100644
--- a/include/libcamera/base/signal.h
+++ b/include/libcamera/base/signal.h
@@ -63,11 +63,8 @@ public:
 
 #ifndef __DOXYGEN__
 	template<typename T, typename Func,
-		 std::enable_if_t<std::is_base_of<Object, T>::value
-#if __cplusplus >= 201703L
-				  && std::is_invocable_v<Func, Args...>
-#endif
-				  > * = nullptr>
+		 std::enable_if_t<std::is_base_of<Object, T>::value &&
+				  std::is_invocable_v<Func, Args...>> * = nullptr>
 	void connect(T *obj, Func func, ConnectionType type = ConnectionTypeAuto)
 	{
 		Object *object = static_cast<Object *>(obj);
@@ -75,11 +72,8 @@ public:
 	}
 
 	template<typename T, typename Func,
-		 std::enable_if_t<!std::is_base_of<Object, T>::value
-#if __cplusplus >= 201703L
-				  && std::is_invocable_v<Func, Args...>
-#endif
-				  > * = nullptr>
+		 std::enable_if_t<!std::is_base_of<Object, T>::value &&
+				  std::is_invocable_v<Func, Args...>> * = nullptr>
 #else
 	template<typename T, typename Func>
 #endif
-- 
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