1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // <algorithm> 11 // XFAIL: c++03, c++11, c++14 12 13 // template<class T> 14 // const T& 15 // clamp(const T& v, const T& lo, const T& hi); 16 17 #include <algorithm> 18 #include <cassert> 19 20 template <class T> 21 void 22 test(const T& a, const T& lo, const T& hi, const T& x) 23 { 24 assert(&std::clamp(a, lo, hi) == &x); 25 } 26 27 int main() 28 { 29 { 30 int x = 0; 31 int y = 0; 32 int z = 0; 33 test(x, y, z, x); 34 test(y, x, z, y); 35 } 36 { 37 int x = 0; 38 int y = 1; 39 int z = 2; 40 test(x, y, z, y); 41 test(y, x, z, y); 42 } 43 { 44 int x = 1; 45 int y = 0; 46 int z = 1; 47 test(x, y, z, x); 48 test(y, x, z, x); 49 } 50 #if _LIBCPP_STD_VER > 11 51 { 52 typedef int T; 53 constexpr T x = 1; 54 constexpr T y = 0; 55 constexpr T z = 1; 56 static_assert(std::clamp(x, y, z) == x, "" ); 57 static_assert(std::clamp(y, x, z) == x, "" ); 58 } 59 #endif 60 } 61
