pointer_size.pass.cpp (1483B)
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 // <valarray> 11 12 // template<class T> class valarray; 13 14 // valarray(const value_type* p, size_t n); 15 16 #include <valarray> 17 #include <cassert> 18 #include <cstddef> 19 20 int main() 21 { 22 { 23 typedef int T; 24 T a[] = {1, 2, 3, 4, 5}; 25 const unsigned N = sizeof(a)/sizeof(a[0]); 26 std::valarray<T> v(a, N); 27 assert(v.size() == N); 28 for (unsigned i = 0; i < N; ++i) 29 assert(v[i] == a[i]); 30 } 31 { 32 typedef double T; 33 T a[] = {1, 2.5, 3, 4.25, 5}; 34 const unsigned N = sizeof(a)/sizeof(a[0]); 35 std::valarray<T> v(a, N); 36 assert(v.size() == N); 37 for (unsigned i = 0; i < N; ++i) 38 assert(v[i] == a[i]); 39 } 40 { 41 typedef std::valarray<double> T; 42 T a[] = {T(1), T(2), T(3), T(4), T(5)}; 43 const unsigned N = sizeof(a)/sizeof(a[0]); 44 std::valarray<T> v(a, N); 45 assert(v.size() == N); 46 for (unsigned i = 0; i < N; ++i) 47 { 48 assert(v[i].size() == a[i].size()); 49 for (std::size_t j = 0; j < v[i].size(); ++j) 50 assert(v[i][j] == a[i][j]); 51 } 52 } 53 }