Update copyright years.

[thirdparty/gcc.git] / libstdc++-v3 / include / c_compatibility / math.h

diff --git a/libstdc++-v3/include/c_compatibility/math.h b/libstdc++-v3/include/c_compatibility/math.h
index 1f579ee594c2a16ab612b9b46cdd281c5c37ef87..e4661150b574097e4e6a488d2cc235b0f615c0a2 100644 (file)
--- a/libstdc++-v3/include/c_compatibility/math.h
+++ b/libstdc++-v3/include/c_compatibility/math.h
@@ -1,6 +1,6 @@
 // -*- C++ -*- compatibility header.
 
-// Copyright (C) 2002-2016 Free Software Foundation, Inc.
+// Copyright (C) 2002-2022 Free Software Foundation, Inc.
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
@@ -111,7 +111,9 @@ using std::tgamma;
 using std::trunc;
 #endif // C++11 && _GLIBCXX_USE_C99_MATH_TR1
 
-#if __STDCPP_WANT_MATH_SPEC_FUNCS__ == 1
+// The mathematical special functions are only added to the global namespace
+// by IS 29124, but not by C++17.
+#if __cplusplus >= 201103L && __STDCPP_WANT_MATH_SPEC_FUNCS__ != 0
 using std::assoc_laguerref;
 using std::assoc_laguerrel;
 using std::assoc_laguerre;
@@ -175,7 +177,11 @@ using std::sph_legendre;
 using std::sph_neumannf;
 using std::sph_neumannl;
 using std::sph_neumann;
-#endif // __STDCPP_WANT_MATH_SPEC_FUNCS__
+#endif // _GLIBCXX_USE_STD_SPEC_FUNCS
+
+#if __cplusplus > 201703L
+using std::lerp;
+#endif // C++20
 
 #endif // _GLIBCXX_MATH_H
 #endif // __cplusplus