1 files changed, 9 insertions, 6 deletions

diff --git a/manual/manual.of b/manual/manual.of
index 56619afe..1069f644 100644
--- a/manual/manual.of
+++ b/manual/manual.of
@@ -4262,8 +4262,9 @@ you push the main function plus any arguments
 onto the empty stack of the thread.
 then you call @Lid{lua_resume},
 with @id{nargs} being the number of arguments.
-This call returns when the coroutine suspends or finishes its execution.
-When it returns,
+The function returns when the coroutine suspends,
+finishes its execution, or raises an unprotected error.
+When it returns without errors,
 @id{*nresults} is updated and
 the top of the stack contains
 the @id{*nresults} values passed to @Lid{lua_yield}
@@ -4274,9 +4275,11 @@ or returned by the body function.
 without errors,
 or an error code in case of errors @see{statuscodes}.
 In case of errors,
-the error object is on the top of the stack.
+the error object is pushed on the top of the stack.
+(In that case, @id{nresults} is not updated,
+as its value would have to be 1 for the sole error object.)
 
-To resume a coroutine,
+To resume a suspended coroutine,
 you remove the @id{*nresults} yielded values from its stack,
 push the values to be passed as results from @id{yield},
 and then call @Lid{lua_resume}.
@@ -4822,8 +4825,8 @@ typedef struct lua_Debug {
   unsigned char nparams;      /* (u) number of parameters */
   char isvararg;              /* (u) */
   char istailcall;            /* (t) */
-  unsigned short ftransfer;   /* (r) index of first value transferred */
-  unsigned short ntransfer;   /* (r) number of transferred values */
+  int ftransfer;              /* (r) index of first value transferred */
+  int ntransfer;              /* (r) number of transferred values */
   char short_src[LUA_IDSIZE]; /* (S) */
   /* private part */
   @rep{other fields}