On Wednesday, May 12, 2021 12:51 PM, Charlie Barto <Charles.Barto_at_[hidden]> wrote:

> extern “C” VkResult vkCreateInstance(const VkInstanceCreateInfo*, const VKAllocationCallbacks*, VkInstance*);
>

>
>

> in C:
>

> VkInstance instance = 0;
>

> VkResult result = vkCreateInstance(&(VkInstanceCreateInfo){
>

> .sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO,
>

> .pApplicationInfo = &(VkApplicationInfo) {
>

> .sType = VK_STRUCTURE_TYPE_APPLICATION_INFO,
>

> .pApplicationName = “Hello World”,
>

> .applicationVersion = VK_MAKE_VERSION(0, 1, 0),
>

> .pEngineName = “No Engine”,
>

> .apiVersion = VK_API_VERSION_1_2
>

> }}, NULL, &instance);
>

>
>

> This usecase isn’t supported if the semantics are (T){…} === T{…}

The following is legal given the proposal:

    VkInstance instance = 0;

    VkResult result = vkCreateInstance((VkInstanceCreateInfo[]) {{

        .sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO,

        .pApplicationInfo = (VkApplicationInfo[]) {{

            .sType = VK_STRUCTURE_TYPE_APPLICATION_INFO,

            .pApplicationName = "Hello World",

            .applicationVersion = VK_MAKE_VERSION(0, 1, 0),

            .pEngineName = "No Engine",

            .apiVersion = VK_API_VERSION_1_2

        }}

    }}, nullptr, &instance);

Although it looks somewhat strange (GCC
forbids array-prvalue -> pointer conversion,
but the standard allows it).

https://godbolt.org/z/7n6rG8orY

Does that work for you?

--
Zhihao Yuan, ID lichray
The best way to predict the future is to invent it.
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