[WIP] test on ArrayProxy

tests/ArrayProxy/ArrayProxy.cpp

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+// Copyright(c) 2018, NVIDIA CORPORATION. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// VulkanHpp Samples : ArrayProxy
+//                     Compile test on using vk::ArrayProxy
+
+#include "vulkan/vulkan.hpp"
+#include <iostream>
+
+static char const* AppName = "ArrayProxy";
+static char const* EngineName = "Vulkan.hpp";
+
+void fct(vk::ArrayProxy<int> /*ap*/)
+{}
+
+void fctc(vk::ArrayProxy<const int> /*ap*/)
+{}
+
+int main(int /*argc*/, char ** /*argv*/)
+{
+  try
+  {
+    // nullptr_t
+    fct(nullptr);
+    fctc(nullptr);
+
+    vk::ArrayProxy<int> ap0 = nullptr;
+    assert(ap0.size() == 0);
+
+    // Type
+    //fct(2);  // not supported: cannot convert from 'const int *' to 'T *'
+    fctc(1);
+
+    int i0 = 1;
+    fct(i0);
+    fctc(i0);
+
+    const int i1 = 2;
+    //fct(i1);   // not supported: cannot convert from 'const int *' to 'T *'
+    fctc(i1);
+
+    // count, T *
+    int* i0p = &i0;
+    fct({ 1, i0p });
+    fctc({ 1, i0p });
+
+    // count, T const*
+    int const* i1p = &i1;
+    //fct({ 1, i1p });   // not supported: cannot convert from 'const int *' to 'T *'
+    fctc({ 1, i1p });
+
+    // std::array<T,N>
+    std::array<int, 2> sa0 = { 0, 1 };
+    fct(sa0);
+    fctc(sa0);
+
+    // std::array<T,N> const
+    std::array<const int, 2> sa1 = { 0, 1 };
+    //fct(sa1); // not supported: cannot convert from '_Ty *' to 'T *'
+    fctc(sa1);
+
+    std::array<int, 2> const sa2 = { 1, 2 };
+    //fct(sa2);    // not supported: cannot convert from 'const _Ty *' to 'T *'
+    fctc(sa2);
+
+    std::array<const int, 2> const sa3 = { 1, 2 };
+    //fct(sa3); // not supported: cannot convert from '_Ty *' to 'T *'
+    fctc(sa3);
+
+    vk::ArrayProxy<int> ap2 = sa0;
+    assert(ap2.size() == 2);
+    //vk::ArrayProxy<int> ap3 = sa1;  // not supported: cannot convert from '_Ty *' to 'T *'
+    //vk::ArrayProxy<int> ap4 = sa2;  // not supported: cannot convert from '_Ty *' to 'T *'
+    //vk::ArrayProxy<int> ap5 = sa3;  // not supported: cannot convert from '_Ty *' to 'T *'
+
+    vk::ArrayProxy<const int> ap6 = sa0;
+    assert(ap6.size() == 2);
+    vk::ArrayProxy<const int> ap7 = sa1;
+    assert(ap7.size() == 2);
+    vk::ArrayProxy<const int> ap8 = sa2;
+    assert(ap8.size() == 2);
+    vk::ArrayProxy<const int> ap9 = sa3;
+    assert(ap9.size() == 2);
+
+    // std::vector<T>
+    std::vector<int> sv0 = { 0, 1 };
+    fct(sv0);
+    fctc(sv0);
+
+    std::vector<int> const sv1 = { 0, 1 };
+    //fct(sv1); // not supported:  cannot convert from 'const _Ty *' to 'T *'
+    fctc(sv1);
+
+    vk::ArrayProxy<int> ap10 = sv0;
+    assert(ap10.size() == 2);
+    //vk::ArrayProxy<int> ap11 = sv1;  // not supported: cannot convert from '_Ty *' to 'T *'
+
+    vk::ArrayProxy<const int> ap12 = sv0;
+    assert(ap12.size() == 2);
+    vk::ArrayProxy<const int> ap13 = sv1;
+    assert(ap13.size() == 2);
+
+    // std::initializer_list
+    fct({});
+    fctc({});
+
+    //fct({ 0, 1 });   // not supported: cannot convert from 'const _Elem *' to 'T *'
+    fctc({ 0, 1 });
+
+    int a = 0;
+    int b = 1;
+    //fct({ a, b });  // not supported: cannot convert from 'const _Elem *' to 'T *'
+    fctc({ a,b });
+
+    auto il0 = { 0, 1 };   // -> std::initializer_list<int>
+    //fct(il0);  // not supported: cannot convert from 'const _Elem *' to 'T *'
+    fctc(il0);
+
+    std::initializer_list<int> il1 = { 0, 1 };
+    //fct(il1);  // not supported: cannot convert from 'const _Elem *' to 'T *'
+    fctc(il1);
+
+    std::initializer_list<const int> il2 = { 0, 1 };
+    //fct(il2);  // not supported: cannot convert from '_Elem *' to 'T *'
+    fctc(il2);
+
+    std::initializer_list<int> const il3 = { 0, 1 };
+    //fct(il3);  // not supported: cannot convert from 'const _Elem *' to 'T *'
+    fctc(il3);
+
+    std::initializer_list<const int> const il4 = { 0, 1 };
+    //fct(il4);  // not supported: cannot convert from 'const _Elem *' to 'T *'
+    fctc(il4);
+
+    //vk::ArrayProxy<int> ap14 = il1;   // not supported: cannot convert from 'const _Elem *' to 'T *'
+    //vk::ArrayProxy<int> ap15 = il2;   // not supported: cannot convert from '_Ty *' to 'T *'
+    //vk::ArrayProxy<int> ap16 = il3;   // not supported: cannot convert from '_Ty *' to 'T *'
+    //vk::ArrayProxy<int> ap17 = il4;   // not supported: cannot convert from '_Ty *' to 'T *'
+
+    vk::ArrayProxy<const int> ap18 = il1;
+    assert(ap18.size() == 2);
+    vk::ArrayProxy<const int> ap19 = il2;
+    assert(ap19.size() == 2);
+    vk::ArrayProxy<const int> ap20 = il3;
+    assert(ap20.size() == 2);
+    vk::ArrayProxy<const int> ap21 = il4;
+    assert(ap21.size() == 2);
+  }
+  catch (vk::SystemError const& err)
+  {
+    std::cout << "vk::SystemError: " << err.what() << std::endl;
+    exit(-1);
+  }
+  catch (...)
+  {
+    std::cout << "unknown error\n";
+    exit(-1);
+  }
+
+  return 0;
+}