Fix impure push parser compile error reported by Bob Rossi at

[bison.git] / doc / bison.texinfo

diff --git a/doc/bison.texinfo b/doc/bison.texinfo
index bb6d5dcc4f9fd2ad546cd75a69cf88f3e48dae20..d513b5558826ccca1a797bcd44ab5651cf101db9 100644 (file)
--- a/doc/bison.texinfo
+++ b/doc/bison.texinfo
@@ -5339,7 +5339,9 @@ This function is available if either the @code{%define api.push_pull "push"} or
 
 @deftypefun yypstate *yypstate_new (void)
 The fuction will return a valid parser instance if there was memory available
-or NULL if no memory was available.
+or 0 if no memory was available.
+In impure mode, it will also return 0 if a parser instance is currently
+allocated.
 @end deftypefun
 
 @node Parser Delete Function