Index: src/tests/coroutine/.expect/coroutine.txt
===================================================================
--- src/tests/coroutine/.expect/coroutine.txt	(revision b0e5593593d06c06d62641db360f3587561b97a6)
+++ src/tests/coroutine/.expect/coroutine.txt	(revision b0e5593593d06c06d62641db360f3587561b97a6)
@@ -0,0 +1,10 @@
+0 0
+1 1
+1 1
+2 2
+3 3
+5 5
+8 8
+13 13
+21 21
+34 34
Index: src/tests/coroutine/.expect/fmtLines.txt
===================================================================
--- src/tests/coroutine/.expect/fmtLines.txt	(revision b0e5593593d06c06d62641db360f3587561b97a6)
+++ src/tests/coroutine/.expect/fmtLines.txt	(revision b0e5593593d06c06d62641db360f3587561b97a6)
@@ -0,0 +1,78 @@
+// /  / Cf  oral  l Ve  rsio  
+n 1.  0.0   Copy  righ  t (C  
+) 20  17 U  nive  rsit  y of  
+ Wat  erlo  o///  / Th  e co  
+nten  ts o  f th  is f  ile   
+are   cove  red   unde  r th  
+e li  cenc  e ag  reem  ent   
+in t  he//   fil  e "L  ICEN  
+CE"   dist  ribu  ted   with  
+ Cfo  rall  .//   // f  mtLi  
+nes.  cc -  - //   //   Auth  
+or                 : P  eter  
+ A.   Buhr  // C  reat  ed O  
+n           : Su  n Se  p 17  
+ 21:  56:1  5 20  17//   Las  
+t Mo  difi  ed B  y :   Pete  
+r A.   Buh  r//   Last   Mod  
+ifie  d On   : M  on S  ep 1  
+8 11  :35:  57 2  017/  / Up  
+date   Cou  nt       :   31/  
+/ #i  nclu  de <  fstr  eam>  
+#inc  lude   <co  rout  ine>  
+coro  utin  e Fo  rmat   {	c  
+har   ch;	  				  				  		//  
+ use  d fo  r co  mmun  icat  
+ion	  int   g, b  ;			  				  
+				  // g  loba  l be  caus  
+e us  ed i  n de  stru  ctor  
+};vo  id ?  {}(   Form  at &  
+ fmt   ) {        resu  me(   
+fmt   );		  				  				  // s  
+tart   cor  outi  ne}v  oid   
+^?{}  ( Fo  rmat   & f  mt )  
+ {      if   ( f  mt.g   !=   
+0 ||   fmt  .b !  = 0   ) so  
+ut |   end  l;}v  oid   main  
+( Fo  rmat   & f  mt )   {	f  
+or (   ;;   ) {	  				  				  
+	//   for   as m  any   char  
+acte  rs		  for   ( fm  t.g   
+= 0;   fmt  .g <   5;   fmt.  
+g +=   1 )   {		  // g  roup  
+s of   5 b  lock  s			  for   
+( fm  t.b   = 0;   fmt  .b <  
+ 4;   fmt.  b +=   1 )   {	/  
+/ bl  ocks   of   4 ch  arac  
+ters  				  for   ( ;;   ) {  
+				  			/  / fo  r ne  wlin  
+e ch  arac  ters  				  	sus  
+pend  ();	  				  if (   fmt  
+.ch   != '  \n'   ) br  eak;  
+		//   ign  ore   newl  ine	  
+			}   //   for	  			s  out   
+| fm  t.ch  ;			  				  // p  
+rint   cha  ract  er		  	} /  
+/ fo  r			  sout   | "    ";  
+				  				  // p  rint   blo  
+ck s  epar  ator  		}   // f  
+or		  sout   | e  ndl;  				  
+				  	//   prin  t gr  oup   
+sepa  rato  r	}   // f  or}   
+// m  ainv  oid   prt(   For  
+mat   & fm  t, c  har   ch )  
+ {      fm  t.ch   = c  h;    
+  re  sume  ( fm  t );  } //  
+ prt  int   main  () {  	For  
+mat   fmt;  	cha  r ch  ;	fo  
+r (   ;; )   {		  sin   | ch  
+;			  				  			/  / re  ad o  
+ne c  hara  cter  	  i  f (   
+eof(   sin   ) )   bre  ak;	  
+				  		//   eof   ?		  prt(  
+ fmt  , ch   );	  } //   for  
+} //   mai  n//   Loca  l Va  
+riab  les:   ///  / ta  b-wi  
+dth:   4 /  ///   comp  ile-  
+comm  and:   "cf  a fm  tLin  
+es.c  " //  // E  nd:   //
Index: src/tests/coroutine/.expect/pingpong.txt
===================================================================
--- src/tests/coroutine/.expect/pingpong.txt	(revision b0e5593593d06c06d62641db360f3587561b97a6)
+++ src/tests/coroutine/.expect/pingpong.txt	(revision b0e5593593d06c06d62641db360f3587561b97a6)
@@ -0,0 +1,40 @@
+ping
+pong
+ping
+pong
+ping
+pong
+ping
+pong
+ping
+pong
+ping
+pong
+ping
+pong
+ping
+pong
+ping
+pong
+ping
+pong
+ping
+pong
+ping
+pong
+ping
+pong
+ping
+pong
+ping
+pong
+ping
+pong
+ping
+pong
+ping
+pong
+ping
+pong
+ping
+pong
Index: src/tests/coroutine/.expect/prodcons.txt
===================================================================
--- src/tests/coroutine/.expect/prodcons.txt	(revision b0e5593593d06c06d62641db360f3587561b97a6)
+++ src/tests/coroutine/.expect/prodcons.txt	(revision b0e5593593d06c06d62641db360f3587561b97a6)
@@ -0,0 +1,33 @@
+47 88
+47 88
+ $1
+ $1
+1
+68 24
+ # 1
+68 24
+ $2
+ $2
+2
+58 18
+ # 2
+58 18
+ $3
+ $3
+3
+55 82
+ # 3
+55 82
+ $4
+ $4
+4
+60 87
+ # 4
+60 87
+ $5
+ $5
+5
+ # 5
+cons stops
+prod stops
+main stops