Segmentation fault, what do I do wrong?

[sent44]

#include <bgfx.h>
#include <SDL3/SDL.h>
#include <stdio.h>

int main(){
    printf("checkpoint A\n");
    if(!SDL_Init(SDL_INIT_VIDEO)){
        printf("sdl init error");
        return 1;
    }
    SDL_Window* window = SDL_CreateWindow("SDL3 and BGFX and VULKAN", 1280, 720, SDL_WINDOW_VULKAN);
    if(window == NULL){
        printf("window error");
        return 1;
    }

    bgfx_platform_data_t pd;
    printf("::%s\n", SDL_GetCurrentVideoDriver());
    pd.ndt = SDL_GetPointerProperty(SDL_GetWindowProperties(window), SDL_PROP_WINDOW_X11_DISPLAY_POINTER, NULL);
    pd.nwh = (void*) SDL_GetNumberProperty(SDL_GetWindowProperties(window), SDL_PROP_WINDOW_X11_WINDOW_NUMBER, 0);
    pd.context = NULL;
    pd.backBuffer = NULL;
    pd.backBufferDS = NULL;
    bgfx_set_platform_data(&pd);

    bgfx_init_t init;
    init.type = BGFX_RENDERER_TYPE_VULKAN;
    init.vendorId = BGFX_PCI_ID_NONE;
    init.platformData.nwh = pd.nwh;
    init.platformData.ndt = pd.ndt;
    init.resolution.width = 1280;
    init.resolution.height = 720;

    printf("checkpoint B\n");
    bgfx_init(&init);
    printf("checkpoint C\n");

    bgfx_set_debug(BGFX_DEBUG_TEXT);
    bgfx_set_view_clear( 0, BGFX_CLEAR_COLOR | BGFX_CLEAR_DEPTH, 0x303030FF, 1.0f, 0 );

    bool exit = false;
    SDL_Event event;
    int counter = 0;
    while(!exit){
        bgfx_set_view_rect(0, 0, 0, 1280, 720);
        bgfx_touch(0);
        bgfx_dbg_text_clear(0, false);
        bgfx_dbg_text_printf(0,1,0x4f, "Counter: %d", counter);
        counter++;
        bgfx_frame(false);
        while(SDL_PollEvent(&event)){
            switch(event.type){
			case SDL_EVENT_QUIT:
			case SDL_EVENT_WINDOW_CLOSE_REQUESTED:
				exit = true;
				break;
			}
        }
    }
}

$ gcc test.c -o bin/test2 bin/libbgfx.so -lSDL3 -Ilib/bgfx/include/bgfx/c99 -Ilib/bx/include -Ilib/bimg/include
$ bin/test2
checkpoint A
::x11
checkpoint B
Segmentation fault (core dumped)

bin/libbgfx.so is debug version; That is all message it printed
Code is ref from https://gist.github.com/ShogunateTM/87947e63ccb8ae273c85fbfc5f6f03b0
C++ with Vulkan is running fine

[mozbeel]

Perhaps you defined the init variable with the wrong type:
try bgfx::Init

[sent44]

There is no such a thing as namespace in C.

[sent44]

I missed bgfx_init_ctor(&init);
It is not mention in API docs.
It is mentioned in C99 example but it is a needle in the sea (haystack) of C++ example so I missed when I looked for it early.

[bkaradzic]

It's kind of expected that you base your C code on C99 example, not on C++.