libcxx initial import
llvm-svn: 103490
diff --git a/libcxx/test/numerics/numarray/valarray.nonmembers/valarray.special/swap.pass.cpp b/libcxx/test/numerics/numarray/valarray.nonmembers/valarray.special/swap.pass.cpp
new file mode 100644
index 0000000..5f89f81
--- /dev/null
+++ b/libcxx/test/numerics/numarray/valarray.nonmembers/valarray.special/swap.pass.cpp
@@ -0,0 +1,91 @@
+//===----------------------------------------------------------------------===//
+//
+// ÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊThe LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <valarray>
+
+// template<class T> class valarray;
+
+// template<class T>
+// void
+// swap(valarray<T>& x, valarray<T>& y);
+
+#include <valarray>
+#include <cassert>
+
+int main()
+{
+ {
+ typedef int T;
+ T a1[] = {1, 2, 3, 4, 5};
+ T a2[] = {6, 7, 8, 9, 10, 11, 12};
+ const unsigned N1 = sizeof(a1)/sizeof(a1[0]);
+ const unsigned N2 = sizeof(a2)/sizeof(a2[0]);
+ std::valarray<T> v1(a1, N1);
+ std::valarray<T> v2(a2, N2);
+ std::valarray<T> v1_save = v1;
+ std::valarray<T> v2_save = v2;
+ swap(v1, v2);
+ assert(v1.size() == v2_save.size());
+ for (int i = 0; i < v1.size(); ++i)
+ assert(v1[i] == v2_save[i]);
+ assert(v2.size() == v1_save.size());
+ for (int i = 0; i < v2.size(); ++i)
+ assert(v2[i] == v1_save[i]);
+ }
+ {
+ typedef int T;
+ T a1[] = {1, 2, 3, 4, 5};
+ const unsigned N1 = sizeof(a1)/sizeof(a1[0]);
+ const unsigned N2 = 0;
+ std::valarray<T> v1(a1, N1);
+ std::valarray<T> v2;
+ std::valarray<T> v1_save = v1;
+ std::valarray<T> v2_save = v2;
+ swap(v1, v2);
+ assert(v1.size() == v2_save.size());
+ for (int i = 0; i < v1.size(); ++i)
+ assert(v1[i] == v2_save[i]);
+ assert(v2.size() == v1_save.size());
+ for (int i = 0; i < v2.size(); ++i)
+ assert(v2[i] == v1_save[i]);
+ }
+ {
+ typedef int T;
+ T a2[] = {6, 7, 8, 9, 10, 11, 12};
+ const unsigned N1 = 0;
+ const unsigned N2 = sizeof(a2)/sizeof(a2[0]);
+ std::valarray<T> v1;
+ std::valarray<T> v2(a2, N2);
+ std::valarray<T> v1_save = v1;
+ std::valarray<T> v2_save = v2;
+ swap(v1, v2);
+ assert(v1.size() == v2_save.size());
+ for (int i = 0; i < v1.size(); ++i)
+ assert(v1[i] == v2_save[i]);
+ assert(v2.size() == v1_save.size());
+ for (int i = 0; i < v2.size(); ++i)
+ assert(v2[i] == v1_save[i]);
+ }
+ {
+ typedef int T;
+ const unsigned N1 = 0;
+ const unsigned N2 = 0;
+ std::valarray<T> v1;
+ std::valarray<T> v2;
+ std::valarray<T> v1_save = v1;
+ std::valarray<T> v2_save = v2;
+ swap(v1, v2);
+ assert(v1.size() == v2_save.size());
+ for (int i = 0; i < v1.size(); ++i)
+ assert(v1[i] == v2_save[i]);
+ assert(v2.size() == v1_save.size());
+ for (int i = 0; i < v2.size(); ++i)
+ assert(v2[i] == v1_save[i]);
+ }
+}