Memory leak in example.c

[zlucode]

example.c |__main()

    unsigned char *output_file_data;
    size_t output_file_size;
 ///====This function allocates the out buffer with standard malloc =========
    unsigned int out_status = lodepng_encode(&output_file_data, &output_file_size, raw_8bit_pixels, width, height, &state);
    if (out_status) {
        fprintf(stderr, "Can't encode image: %s\n", lodepng_error_text(out_status));
        return EXIT_FAILURE;
    }
///but seems never free output_file_data
    const char *output_png_file_path = "quantized_example.png";
    FILE *fp = fopen(output_png_file_path, "wb");
    if (!fp) {
        fprintf(stderr, "Unable to write to %s\n", output_png_file_path);
        return EXIT_FAILURE;
    }
    fwrite(output_file_data, 1, output_file_size, fp);

Is it necessary to add free(output_file_data) in the end of main() function?

B.R. Lu

[kornelski]

Yes, it's necessary to free it. It's just an example, not a complete implementation.