Re: What do you think about using Chat GPT to create functions in D?

[Ferhat Kurtulmuş via Digitalmars-d-learn]

On Monday, 3 April 2023 at 23:38:52 UTC, Marcone wrote:
What do you think about using Chat GPT to create functions in 
D? I asked Chat-GPT to create a function in D that was similar 
to the rsplit() function in Python. It returned this code to me:


import std.algorithm;
import std.array;
import std.string;

string[] rsplit(string input, string separator, size_t maxsplit 
= size_t.max) {
    auto splitter = splitter(input, separator, 
SplitterFlag.all);
    auto results = splitter.array;
    if (maxsplit < results.length - 1)
        results = results[results.length - maxsplit - 1 .. $];
    return results;
}

Recently, it helped me figure out an OpenGL task using d.

    This is the code it suggests after I provide some details to 
it about the case and the error I get:
    ```d
    Slice!(RCI!ubyte, 3LU, Contiguous) plot2imslice() @nogc 
nothrow
    {
        import mir.rc;

        Slice!(RCI!ubyte, 3LU, Contiguous) imgslice = 
rcslice!ubyte([height, width, 3], 0);

        glfwMakeContextCurrent(_glfwWindow);

        // create and bind framebuffer
        GLuint fbo;
        glGenFramebuffers(1, &fbo);
        glBindFramebuffer(GL_FRAMEBUFFER, fbo);

        // create and bind texture
        GLuint texture;
        glGenTextures(1, &texture);
        glBindTexture(GL_TEXTURE_2D, texture);
        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, 
GL_RGB, GL_UNSIGNED_BYTE, null);
        glFramebufferTexture2D(GL_FRAMEBUFFER, 
GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture, 0);

        // render scene to framebuffer
        glBindFramebuffer(GL_FRAMEBUFFER, fbo);
        // render your scene here

        // read pixel data from framebuffer
        glReadPixels(0, 0, width, height, GL_RGB, 
GL_UNSIGNED_BYTE, imgslice.ptr);

        // flip image vertically
        for (size_t y = 0; y < height / 2; y++) {
            for (size_t x = 0; x < width; x++) {
                // swap rows
                swap(imgslice[y][x], imgslice[height - y - 1][x]);
            }
        }

        // unbind framebuffer and cleanup
        glBindFramebuffer(GL_FRAMEBUFFER, 0);
        glDeleteTextures(1, &texture);
        glDeleteFramebuffers(1, &fbo);

        return imgslice;
    }
    ```

    And this is the code after required modifications:
    ```d
    auto plot2imslice() @nogc nothrow
        {
            import mir.rc;

            Slice!(RCI!ubyte, 3LU, Contiguous) imgslice = 
rcslice!ubyte([height, width, 3], 0);

            glfwMakeContextCurrent(_glfwWindow);

            // create and bind framebuffer
            GLuint fbo;
            glGenFramebuffers(1, &fbo);
            glBindFramebuffer(GL_FRAMEBUFFER, fbo);

            // create and bind texture
            GLuint texture;
            glGenTextures(1, &texture);
            glBindTexture(GL_TEXTURE_2D, texture);
            glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, width, height, 
0, GL_RGB, GL_UNSIGNED_BYTE, null);
            glFramebufferTexture2D(GL_FRAMEBUFFER, 
GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture, 0);

            // render scene to framebuffer
            glBindFramebuffer(GL_FRAMEBUFFER, fbo);

            // render scene here
            render();

            // read pixel data from framebuffer
            glReadPixels(0, 0, width, height, GL_RGB, 
GL_UNSIGNED_BYTE, imgslice.ptr);

            import mir.utility : swap;
            // flip image vertically to correct generated image
            foreach (y; 0..height / 2) {
                each!swap(imgslice[y], imgslice[height - y - 1]);
            }
            // unbind framebuffer and cleanup
            glBindFramebuffer(GL_FRAMEBUFFER, 0);
            glDeleteTextures(1, &texture);
            glDeleteFramebuffers(1, &fbo);

            return imgslice;
        }
    ```

This comment of chatGPT saved the day :) // render your scene here