1 files changed, 153 insertions, 0 deletions
diff --git a/test/std/containers/views/span.comparison/op.ge.pass.cpp b/test/std/containers/views/span.comparison/op.ge.pass.cpp
new file mode 100644
index 000000000000..8ec1b9a590eb
--- /dev/null
+++ b/test/std/containers/views/span.comparison/op.ge.pass.cpp
@@ -0,0 +1,153 @@
+// -*- C++ -*-
+//===------------------------------ span ---------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===---------------------------------------------------------------------===//
+// UNSUPPORTED: c++98, c++03, c++11, c++14, c++17 
+
+// <span>
+
+// template<class T, ptrdiff_t X, class U, ptrdiff_t Y>
+//   constexpr bool operator>=(span<T, X> l, span<U, Y> r);
+//   
+//
+// Effects: Equivalent to: return !(l < r);
+//
+
+#include <span>
+#include <cassert>
+
+#include "test_macros.h"
+
+struct A{};
+bool operator==(A, A) {return true;}
+
+constexpr   int iArr1[] = { 0,  1,  2,  1,  2,  5,  6,  7,  8,  9};
+            int iArr2[] = { 0,  1,  2,  1,  2,  5,  6,  7,  8,  9};
+constexpr float fArr1[]  = {0., 1., 2., 1., 2., 5., 6., 7., 8., 9.};
+          float fArr2[]  = {0., 1., 2., 1., 2., 5., 6., 7., 8., 9.};
+         
+
+int main () {
+
+    constexpr std::span<const int>     csp0d{};
+    constexpr std::span<const int>     csp1d{iArr1, 10};
+    constexpr std::span<const int>     csp2d{iArr1 + 3, 2};
+    constexpr std::span<const int>     csp3d{iArr1 + 1, 2};
+    constexpr std::span<const int>     csp4d{iArr1 + 6, 2};
+
+    constexpr std::span<const int,  0> csp0s{};
+    constexpr std::span<const int, 10> csp1s{iArr1, 10};
+    constexpr std::span<const int, 2>  csp2s{iArr1 + 3, 2};
+    constexpr std::span<const int, 2>  csp3s{iArr1 + 1, 2};
+    constexpr std::span<const int, 2>  csp4s{iArr1 + 6, 2};
+
+    static_assert( (csp0d >= csp0d), "");
+    static_assert( (csp0s >= csp0s), "");
+    static_assert( (csp0s >= csp0d), "");
+    static_assert( (csp0d >= csp0s), "");
+    
+    static_assert(!(csp0d >= csp1d), "");
+    static_assert(!(csp0s >= csp1s), "");
+    static_assert(!(csp0s >= csp1d), "");
+    static_assert(!(csp0d >= csp1s), "");
+    
+    static_assert( (csp1d >= csp1s), "");
+    static_assert( (csp1s >= csp1d), "");
+    
+    static_assert( (csp2d >= csp3d), "");
+    static_assert( (csp2s >= csp3s), "");
+    static_assert( (csp2d >= csp3s), "");
+    static_assert( (csp2s >= csp3d), "");
+
+    static_assert(!(csp2d >= csp4d), "");
+    static_assert(!(csp2s >= csp4s), "");
+    static_assert(!(csp2d >= csp4s), "");
+    static_assert(!(csp2s >= csp4d), "");
+
+    static_assert( (csp4d >= csp2d), "");
+    static_assert( (csp4s >= csp2s), "");
+    static_assert( (csp4d >= csp2s), "");
+    static_assert( (csp4s >= csp2d), "");
+
+    std::span<int>     sp0d{};
+    std::span<int>     sp1d{iArr2, 10};
+    std::span<int>     sp2d{iArr2 + 3, 2};
+    std::span<int>     sp3d{iArr2 + 1, 2};
+    std::span<int>     sp4d{iArr2 + 6, 2};
+
+    std::span<int,  0> sp0s{};
+    std::span<int, 10> sp1s{iArr2, 10};
+    std::span<int, 2>  sp2s{iArr2 + 3, 2};
+    std::span<int, 2>  sp3s{iArr2 + 1, 2};
+    std::span<int, 2>  sp4s{iArr2 + 6, 2};
+
+    assert( (sp0d >= sp0d));
+    assert( (sp0s >= sp0s));
+    assert( (sp0s >= sp0d));
+    assert( (sp0d >= sp0s));
+    
+    assert(!(sp0d >= sp1d));
+    assert(!(sp0s >= sp1s));
+    assert(!(sp0s >= sp1d));
+    assert(!(sp0d >= sp1s));
+    
+    assert( (sp1d >= sp1s));
+    assert( (sp1s >= sp1d));
+    
+    assert( (sp2d >= sp3d));
+    assert( (sp2s >= sp3s));
+    assert( (sp2d >= sp3s));
+    assert( (sp2s >= sp3d));
+
+    assert(!(sp2d >= sp4d));
+    assert(!(sp2s >= sp4s));
+    assert(!(sp2d >= sp4s));
+    assert(!(sp2s >= sp4d));
+
+    assert( (sp4d > sp2d));
+    assert( (sp4s > sp2s));
+    assert( (sp4d > sp2s));
+    assert( (sp4s > sp2d));
+
+//  cross type comparisons
+    assert( (csp0d >= sp0d));
+    assert( (csp0s >= sp0s));
+    assert( (csp0s >= sp0d));
+    assert( (csp0d >= sp0s));
+    
+    assert(!(csp0d >= sp1d));
+    assert(!(csp0s >= sp1s));
+    assert(!(csp0s >= sp1d));
+    assert(!(csp0d >= sp1s));
+    
+    assert( (csp1d >= sp1s));
+    assert( (csp1s >= sp1d));
+    
+    assert( (csp2d >= sp3d));
+    assert( (csp2s >= sp3s));
+    assert( (csp2d >= sp3s));
+    assert( (csp2s >= sp3d));
+
+    assert(!(csp2d >= sp4d));
+    assert(!(csp2s >= sp4s));
+    assert(!(csp2d >= sp4s));
+    assert(!(csp2s >= sp4d));
+    
+    assert( (csp4d > sp2d));
+    assert( (csp4s > sp2s));
+    assert( (csp4d > sp2s));
+    assert( (csp4s > sp2d));
+
+//  More cross-type comparisons (int vs float)
+    static_assert(!(std::span<const float>{fArr1, 8} >= std::span<const   int>{iArr1, 9}), "");
+    static_assert(!(std::span<const   int>{iArr1, 8} >= std::span<const float>{fArr1, 9}), "");
+    assert( (std::span<float>{fArr2} >= std::span<int>{iArr2}));
+    assert( (std::span<int>{iArr2} >= std::span<float>{fArr2}));
+
+    static_assert( (std::span<const   int>{iArr1, 9} >= std::span<const float>{fArr1, 8}), "");
+}