I have an array of GLuint with fixed size:

GLuint textures[10];

Now I need to set a size of array dynamically. I wrote something like this:

*.h:

GLuint *textures; 

*.m:

textures = malloc(N * sizeof(GLuint)); 

where N - needed size.

Then it used like this:

glGenTextures(N, &textures[0]);
// load texture from image

-(GLuint)getTexture:(int)index{
    return textures[index];
}

I used the answer from here, but program fell in runtime. How to fix this?

Program is written on Objective-C and uses OpenGL ES.