#0  0x0000000000000000 in ?? ()
#1  0x000056098d3afbd5 in cleanup_and_exit (exit_code=exit_code@entry=1) at ../../src/roff/troff/div.cpp:562
  557: 
  558: void cleanup_and_exit(int exit_code)
  559: {
  560:   if (the_output) {
  561:     the_output->trailer(topdiv->get_page_length());
  562:     delete the_output;
  563:   }
  564:   FLUSH_INPUT_PIPE(STDIN_FILENO);
  565:   exit(exit_code);
  566: }
  567: 
#2  0x000056098d3befb1 in do_error (type=type@entry=FATAL, format=format@entry=0x56098d3fe3a5 "error writing output file", arg1=..., arg2=..., arg3=...) at ../../src/roff/troff/input.cpp:8616
  8611:   }
  8612:   errprint(format, arg1, arg2, arg3);
  8613:   fputc('\n', stderr);
  8614:   fflush(stderr);
  8615:   if (type == FATAL)
  8616:     cleanup_and_exit(1);
  8617: }
  8618: 
  8619: int warning(warning_type t,
  8620: 	    const char *format,
  8621: 	    const errarg &arg1,
#3  0x000056098d3c676a in fatal (format=format@entry=0x56098d3fe3a5 "error writing output file", arg1=..., arg2=..., arg3=...) at ../../src/roff/troff/input.cpp:8660
  8655: void fatal(const char *format,
  8656: 	   const errarg &arg1,
  8657: 	   const errarg &arg2,
  8658: 	   const errarg &arg3)
  8659: {
  8660:   do_error(FATAL, format, arg1, arg2, arg3);
  8661: }
  8662: 
  8663: void fatal_with_file_and_line(const char *filename, int lineno,
  8664: 			      const char *format,
  8665: 			      const errarg &arg1,
#4  0x000056098d3e3c88 in real_output_file::~real_output_file (this=0x56098e967920, __in_chrg=<optimized out>) at ../../src/roff/troff/node.cpp:1662
  1657:   if (!fp)
  1658:     return;
  1659:   // To avoid looping, set fp to 0 before calling fatal().
  1660:   if (ferror(fp) || fflush(fp) < 0) {
  1661:     fp = 0;
  1662:     fatal("error writing output file");
  1663:   }
  1664: #ifndef POPEN_MISSING
  1665:   if (piped) {
  1666:     int result = pclose(fp);
  1667:     fp = 0;
#5  0x000056098d3e40fa in troff_output_file::~troff_output_file (this=0x56098e967920, __in_chrg=<optimized out>) at ../../src/roff/troff/node.cpp:1575
  1570: void troff_output_file::really_transparent_char(unsigned char c)
  1571: {
  1572:   put(c);
  1573: }
  1574: 
  1575: troff_output_file::~troff_output_file()
  1576: {
  1577:   a_delete font_position;
  1578: }
  1579: 
  1580: void troff_output_file::trailer(vunits page_length)
#6  troff_output_file::~troff_output_file (this=0x56098e967920, __in_chrg=<optimized out>) at ../../src/roff/troff/node.cpp:1578
  1573: }
  1574: 
  1575: troff_output_file::~troff_output_file()
  1576: {
  1577:   a_delete font_position;
  1578: }
  1579: 
  1580: void troff_output_file::trailer(vunits page_length)
  1581: {
  1582:   flush_tbuf();
  1583:   if (page_length > V0) {
#7  0x000056098d3afbd5 in cleanup_and_exit (exit_code=exit_code@entry=1) at ../../src/roff/troff/div.cpp:562
  557: 
  558: void cleanup_and_exit(int exit_code)
  559: {
  560:   if (the_output) {
  561:     the_output->trailer(topdiv->get_page_length());
  562:     delete the_output;
  563:   }
  564:   FLUSH_INPUT_PIPE(STDIN_FILENO);
  565:   exit(exit_code);
  566: }
  567: 
#8  0x000056098d3befb1 in do_error (type=type@entry=FATAL, format=format@entry=0x56098d3fe3a5 "error writing output file", arg1=..., arg2=..., arg3=...) at ../../src/roff/troff/input.cpp:8616
  8611:   }
  8612:   errprint(format, arg1, arg2, arg3);
  8613:   fputc('\n', stderr);
  8614:   fflush(stderr);
  8615:   if (type == FATAL)
  8616:     cleanup_and_exit(1);
  8617: }
  8618: 
  8619: int warning(warning_type t,
  8620: 	    const char *format,
  8621: 	    const errarg &arg1,
#9  0x000056098d3c676a in fatal (format=format@entry=0x56098d3fe3a5 "error writing output file", arg1=..., arg2=..., arg3=...) at ../../src/roff/troff/input.cpp:8660
  8655: void fatal(const char *format,
  8656: 	   const errarg &arg1,
  8657: 	   const errarg &arg2,
  8658: 	   const errarg &arg3)
  8659: {
  8660:   do_error(FATAL, format, arg1, arg2, arg3);
  8661: }
  8662: 
  8663: void fatal_with_file_and_line(const char *filename, int lineno,
  8664: 			      const char *format,
  8665: 			      const errarg &arg1,
#10 0x000056098d3e2719 in real_output_file::flush (this=0x56098e967920) at ../../src/roff/troff/node.cpp:1692
  1687: }
  1688: 
  1689: void real_output_file::flush()
  1690: {
  1691:   if (fflush(fp) < 0)
  1692:     fatal("error writing output file");
  1693: }
  1694: 
  1695: int real_output_file::is_printing()
  1696: {
  1697:   return printing;
#11 real_output_file::flush (this=0x56098e967920) at ../../src/roff/troff/node.cpp:1689
  1684:     fp = 0;
  1685:     fatal("error closing output file");
  1686:   }
  1687: }
  1688: 
  1689: void real_output_file::flush()
  1690: {
  1691:   if (fflush(fp) < 0)
  1692:     fatal("error writing output file");
  1693: }
  1694: 
#12 troff_output_file::really_print_line (this=0x56098e967920, x=..., y=..., n=0x56098ea55f80, before=..., after=...) at ../../src/roff/troff/node.cpp:929
  924:     if ((is_on() || n->force_tprint())
  925: 	&& (state.changed(n->state) || n->is_tag() || n->is_special)) {
  926:       flush_tbuf();
  927:       do_motion();
  928:       force_motion = 1;
  929:       flush();
  930:       state.flush(fp, n->state, tag_list);
  931:       tag_list = string("");
  932:       flush();
  933:     }
  934:     n->tprint(this);
#13 0x000056098d3dbc11 in real_output_file::print_line (this=<optimized out>, x=..., y=..., n=0x56098e967bf0, before=..., after=..., width=...) at ../../src/roff/troff/node.cpp:1724
  1719: 
  1720: void real_output_file::print_line(hunits x, vunits y, node *n,
  1721: 			     vunits before, vunits after, hunits width)
  1722: {
  1723:   if (printing)
  1724:     really_print_line(x, y, n, before, after, width);
  1725:   delete_node_list(n);
  1726: }
  1727: 
  1728: void real_output_file::really_copy_file(hunits, vunits, const char *)
  1729: {
#14 0x000056098d3afeb8 in top_level_diversion::output (this=0x56098e8dffe0, nd=0x56098e967bf0, retain_size=0, vs=..., post_vs=..., width=...) at ../../src/roff/troff/hvunits.h:102
   97: inline vunits operator +(const vunits & x, const vunits & y)
   98: {
   99:   vunits r;
  100:   r = x;
  101:   r.n += y.n;
  102:   return r;
  103: }
  104: 
  105: inline vunits operator -(const vunits & x, const vunits & y)
  106: {
  107:   vunits r;
#15 0x000056098d3b45c3 in environment::output_line (this=this@entry=0x56098e91f640, n=<optimized out>, width=..., was_centered=0) at ../../src/roff/troff/env.cpp:1847
  1842:       nn = new hmotion_node(x, get_fill_color(), nn);
  1843:     }
  1844:     width += w;
  1845:     ++next_line_number;
  1846:   }
  1847:   output(nn, !fill, vertical_spacing, total_post_vertical_spacing(), width,
  1848: 	 was_centered);
  1849: }
  1850: 
  1851: void environment::start_line()
  1852: {
#16 0x000056098d3bb42d in environment::do_break (this=0x56098e91f640, do_spread=0) at ../../src/roff/troff/env.cpp:2392
  2387: 	break;
  2388:       }
  2389:     }
  2390:     node *tem = line;
  2391:     line = 0;
  2392:     output_line(tem, width_total, was_centered);
  2393:     hyphen_line_count = 0;
  2394:   }
  2395:   prev_line_interrupted = 0;
  2396: #ifdef WIDOW_CONTROL
  2397:   mark_last_line();
#17 0x000056098d3bbc8e in do_break_request (spread=0) at ../../src/roff/troff/env.cpp:2416
  2411: void do_break_request(int spread)
  2412: {
  2413:   while (!tok.newline() && !tok.eof())
  2414:     tok.next();
  2415:   if (break_flag)
  2416:     curenv->do_break(spread);
  2417:   tok.next();
  2418: }
  2419: 
  2420: void break_request()
  2421: {
#18 break_request () at ../../src/roff/troff/env.cpp:2422
  2417:   tok.next();
  2418: }
  2419: 
  2420: void break_request()
  2421: {
  2422:   do_break_request(0);
  2423: }
  2424: 
  2425: void break_spread_request()
  2426: {
  2427:   do_break_request(1);
#19 0x000056098d3d42ac in process_input_stack () at ../../src/roff/troff/input.cpp:2846
  2841: 	  }
  2842: #endif
  2843: 	  if (nm.is_null())
  2844: 	    skip_line();
  2845: 	  else {
  2846: 	    interpolate_macro(nm);
  2847: #if defined(DEBUGGING)
  2848: 	    if (debug_state) {
  2849: 	      fprintf(stderr, "finished interpreting [%s] and environment state is\n", nm.contents());
  2850: 	      curenv->dump_troff_state();
  2851: 	    }
#20 0x000056098d3ad0b8 in main (argc=6, argv=0x7fff0a2d7138) at ../../src/roff/troff/input.cpp:8058
  8053:   if (!no_rc)
  8054:     process_startup_file(FINAL_STARTUP_FILE);
  8055:   for (i = optind; i < argc; i++)
  8056:     process_input_file(argv[i]);
  8057:   if (optind >= argc || iflag)
  8058:     process_input_file("-");
  8059:   exit_troff();
  8060:   return 0;			// not reached
  8061: }
  8062: 
  8063: void warn_request()