726 logerror(Image *image, const char *a1, const char *a2, const char *a3)  in logerror()  function
754    return logerror(image, name, operation, strerror(e));  in logclose()
766       return logerror(image, image->file_name, ": opaque not NULL", "");  in checkopaque()
776       return logerror(image, image->file_name, (image->opts & GBG_ERROR) != 0 ?  in checkopaque()
2401       return logerror(transform->in_image, transform->in_image->file_name,  in logpixel()
2413       return logerror(transform->in_image, transform->in_image->file_name,  in logpixel()
2619       return logerror(a, a->file_name, ": width x height changed: ",  in compare_two_images()
2707                   logerror(a, a->file_name, ": bad pixel index: ", pindex);  in compare_two_images()
2719                   logerror(b, b->file_name, ": bad pixel index: ", pindex);  in compare_two_images()
2761             return logerror(a, a->file_name, ": bad pixel index: ", pindex);  in compare_two_images()
2769             return logerror(b, b->file_name, ": bad pixel index: ", pindex);  in compare_two_images()
2960          return logerror(image, "memory init: ", image->file_name, "");  in read_file()
2967             return logerror(image, "stdio init: ", image->file_name, "");  in read_file()
2973             return logerror(image, "file init: ", image->file_name, "");  in read_file()
2978          return logerror(image, "unsupported file/stdio init: ",  in read_file()
3043          return logerror(image, image->file_name, ": image read failed", "");  in read_file()
3126          return logerror(image, image->file_name, ": open failed: ",  in read_one_file()
3199             return logerror(image, "tmpfile", ": write failed", "");  in write_one_file()
3204          return logerror(image, "tmpfile", ": open: ", strerror(errno));  in write_one_file()
3206       return logerror(image, "tmpfile", ": open: unsupported", "");  in write_one_file()
3231          return logerror(image, name, ": write failed", "");  in write_one_file()
3233       return logerror(image, "stdio", ": open: unsupported", "");  in write_one_file()
3248             return logerror(image, "memory", ": PNG_IMAGE_SIZE_MAX wrong", "");  in write_one_file()
3264                   return logerror(image, "memory", ": memory size wrong", "");  in write_one_file()
3268                return logerror(image, "memory", ": write failed", "");  in write_one_file()
3272             return logerror(image, "memory", ": out of memory", "");  in write_one_file()
3276          return logerror(image, "memory", ": get size:", "");  in write_one_file()
3295          return logerror(image, image->file_name, ": format changed on read: ",  in write_one_file()
3302       return logerror(output, output->tmpfile_name,  in write_one_file()