error: size of array '_dummy_array435' is negative

[GuckTubeYT]

So, i want to build this example

#include #include "nuklear.h" using namespace std;

int main() { struct nk_context ctx; nk_init_fixed(&ctx, calloc(1, MAX_MEMORY), MAX_MEMORY, &font);

enum {EASY, HARD};
static int op = EASY;
static float value = 0.6f;
static int i =  20;

if (nk_begin(&ctx, "Show", nk_rect(50, 50, 220, 220),
    NK_WINDOW_BORDER|NK_WINDOW_MOVABLE|NK_WINDOW_CLOSABLE)) {
    /* fixed widget pixel width */
    nk_layout_row_static(&ctx, 30, 80, 1);
    if (nk_button_label(&ctx, "button")) {
        /* event handling */
    }

    /* fixed widget window ratio width */
    nk_layout_row_dynamic(&ctx, 30, 2);
    if (nk_option_label(&ctx, "easy", op == EASY)) op = EASY;
    if (nk_option_label(&ctx, "hard", op == HARD)) op = HARD;

    /* custom widget pixel width */
    nk_layout_row_begin(&ctx, NK_STATIC, 30, 2);
    {
        nk_layout_row_push(&ctx, 50);
        nk_label(&ctx, "Volume:", NK_TEXT_LEFT);
        nk_layout_row_push(&ctx, 110);
        nk_slider_float(&ctx, 0, &value, 1.0f, 0.1f);
    }
    nk_layout_row_end(&ctx);
}
nk_end(&ctx);

} and then, i got that error

error: size of array '_dummy_array435' is negative error: size of array '_dummy_array436' is negative

How to fix that? i use CodeBlocks Sorry for bad grammar

[lockie]

It looks like the NK_STATIC_ASSERT macro going off, which in turn means there's something badly wrong with the compiler/environment. Could you provide more details on compiler version and the OS you're compiling on? Also please provide the full error message so that it is evident which static assert fails.

[GuckTubeYT]

It looks like the NK_STATIC_ASSERT macro going off, which in turn means there's something badly wrong with the compiler/environment. Could you provide more details on compiler version and the OS you're compiling on? Also please provide the full error message so that it is evident which static assert fails.

i use windows 10, gcc version = 8.1.0, Target = x86_64-w64-mingw32

[lockie]

I was able to reproduce with Wine and Mingw using GCC 8.1.0. Looks like Nuklear incorrectly typedefs integer types under this environment. This needs to be fixed, meanwhile @GuckTubeYT you can #define NK_INCLUDE_FIXED_TYPES before including Nuklear header, this should do the trick.

[lockie]

For the reference, here are failing static asserts:

nuklear.h:435:1: note: in expansion of macro 'NK_STATIC_ASSERT'
 NK_STATIC_ASSERT(sizeof(nk_size) >= sizeof(void*));

nuklear.h:436:1: note: in expansion of macro 'NK_STATIC_ASSERT'
 NK_STATIC_ASSERT(sizeof(nk_ptr) >= sizeof(void*));

nuklear.h:5772:1: note: in expansion of macro 'NK_STATIC_ASSERT'
 NK_STATIC_ASSERT(sizeof(nk_size) >= sizeof(void*));

nuklear.h:5773:1: note: in expansion of macro 'NK_STATIC_ASSERT'
 NK_STATIC_ASSERT(sizeof(nk_ptr) == sizeof(void*));

nk_size gets to be defined as unsigned long under aforementioned environment. Also, judging by the following errors, nk_ptr also gets incorrectly defined just as long unsigned int.

[rjopek]

Hi,

lockie and GuckTubeYT

My compilation method is as follows, from the headers the static library is made first.

x86_64-w64-mingw32 for my environment it has the same errors #define NK_INCLUDE_FIXED_TYPES adding didn't change anything.

../../../../../../include/nuklear_allegro5/../nuklear.h:293:61: error: size of array '_dummy_array435' is negative
  293 |   #define NK_STATIC_ASSERT(exp) typedef char NK_UNIQUE_NAME(_dummy_array)[(exp)?1:-1]
      |                                                             ^~~~~~~~~~~~
../../../../../../include/nuklear_allegro5/../nuklear.h:282:46: note: in definition of macro 'NK_STRING_JOIN_IMMEDIATE'
  282 | #define NK_STRING_JOIN_IMMEDIATE(arg1, arg2) arg1 ## arg2
      |                                              ^~~~
../../../../../../include/nuklear_allegro5/../nuklear.h:284:36: note: in expansion of macro 'NK_STRING_JOIN_DELAY'
  284 | #define NK_STRING_JOIN(arg1, arg2) NK_STRING_JOIN_DELAY(arg1, arg2)
      |                                    ^~~~~~~~~~~~~~~~~~~~
../../../../../../include/nuklear_allegro5/../nuklear.h:289:32: note: in expansion of macro 'NK_STRING_JOIN'
  289 |   #define NK_UNIQUE_NAME(name) NK_STRING_JOIN(name,__LINE__)
      |                                ^~~~~~~~~~~~~~
../../../../../../include/nuklear_allegro5/../nuklear.h:293:46: note: in expansion of macro 'NK_UNIQUE_NAME'
  293 |   #define NK_STATIC_ASSERT(exp) typedef char NK_UNIQUE_NAME(_dummy_array)[(exp)?1:-1]
      |                                              ^~~~~~~~~~~~~~
../../../../../../include/nuklear_allegro5/../nuklear.h:435:1: note: in expansion of macro 'NK_STATIC_ASSERT'
  435 | NK_STATIC_ASSERT(sizeof(nk_size) >= sizeof(void*));
      | ^~~~~~~~~~~~~~~~
../../../../../../include/nuklear_allegro5/../nuklear.h:293:61: error: size of array '_dummy_array436' is negative
  293 |   #define NK_STATIC_ASSERT(exp) typedef char NK_UNIQUE_NAME(_dummy_array)[(exp)?1:-1]
      |                                                             ^~~~~~~~~~~~
../../../../../../include/nuklear_allegro5/../nuklear.h:282:46: note: in definition of macro 'NK_STRING_JOIN_IMMEDIATE'
  282 | #define NK_STRING_JOIN_IMMEDIATE(arg1, arg2) arg1 ## arg2
      |                                              ^~~~
../../../../../../include/nuklear_allegro5/../nuklear.h:284:36: note: in expansion of macro 'NK_STRING_JOIN_DELAY'
  284 | #define NK_STRING_JOIN(arg1, arg2) NK_STRING_JOIN_DELAY(arg1, arg2)
      |                                    ^~~~~~~~~~~~~~~~~~~~
../../../../../../include/nuklear_allegro5/../nuklear.h:289:32: note: in expansion of macro 'NK_STRING_JOIN'
  289 |   #define NK_UNIQUE_NAME(name) NK_STRING_JOIN(name,__LINE__)
      |                                ^~~~~~~~~~~~~~
../../../../../../include/nuklear_allegro5/../nuklear.h:293:46: note: in expansion of macro 'NK_UNIQUE_NAME'
  293 |   #define NK_STATIC_ASSERT(exp) typedef char NK_UNIQUE_NAME(_dummy_array)[(exp)?1:-1]
      |                                              ^~~~~~~~~~~~~~
../../../../../../include/nuklear_allegro5/../nuklear.h:436:1: note: in expansion of macro 'NK_STATIC_ASSERT'
  436 | NK_STATIC_ASSERT(sizeof(nk_ptr) >= sizeof(void*));

[rjopek]

@lockie, @GuckTubeYT

I forgot to add that since Linux the same compilation method works flawlessly, everything is fine.

[l-t-m-f]

I encountered same issue, but I thought maybe I was using it wrong? Has it been resolved?

[lockie]

I can't reproduce it with NK_INCLUDE_FIXED_TYPES macro defined, so looks like the workaround still works. Just to be sure, do you #define NK_INCLUDE_FIXED_TYPES before including any Nuklear headers?

[GuckTubeYT]

thanks its work

[otonoton]

What is the solution if we want to enforce C89 compliance? since stdint.h (used by NK_INCLUDE_FIXED_TYPES) requires C99?

[shrikantvaishnav]

hi, i am also getting same error "error: size of array '_dummy_array435' is negative ".i have already included headers and defines in a project "/* nuklear - 1.32.0 - public domain */ #include <stdio.h> #include <stdlib.h> #include <stdint.h> #include <stdarg.h> #include <string.h> #include <math.h> #include <assert.h> #include <limits.h> #include <time.h>

#include <SDL2/SDL.h>

#define NK_INCLUDE_FIXED_TYPES #define NK_INCLUDE_STANDARD_IO #define NK_INCLUDE_STANDARD_VARARGS #define NK_INCLUDE_DEFAULT_ALLOCATOR #define NK_INCLUDE_VERTEX_BUFFER_OUTPUT #define NK_INCLUDE_FONT_BAKING #define NK_INCLUDE_DEFAULT_FONT #define NK_IMPLEMENTATION #define NK_SDL_RENDERER_IMPLEMENTATION #include "nuklear.h" #include "nuklear_sdl_renderer.h"

i am using codeblocks and i have already included search paths? please help

Regards Shrikant Vaishnav