From: Paul Eggert <eggert@cs.ucla.edu>
Date: Mon, 11 Sep 2006 18:02:10 +0000 (+0000)
Subject: * doc/bison.texinfo (Calc++ Parser): Fix memory leak reported by
X-Git-Tag: v2.3b~301
X-Git-Url: https://git.saurik.com/bison.git/commitdiff_plain/3dc5e96b85a7145b8c0d12f1fd0ab9222f59621d?ds=sidebyside

* doc/bison.texinfo (Calc++ Parser): Fix memory leak reported by
Sander Brandenburg in
<http://lists.gnu.org/archive/html/bug-bison/2006-09/msg00002.html>.
Also, fix minor white space and comment issues.
---

diff --git a/ChangeLog b/ChangeLog
index dfa5420a..dde03052 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2006-09-11  Paul Eggert  <eggert@cs.ucla.edu>
+
+	* doc/bison.texinfo (Calc++ Parser): Fix memory leak reported by
+	Sander Brandenburg in
+	<http://lists.gnu.org/archive/html/bug-bison/2006-09/msg00002.html>.
+	Also, fix minor white space and comment issues.
+
 2006-09-04  Joel E. Denny  <jdenny@ces.clemson.edu>
 
 	Finish implementation of per-type %destructor/%printer.  Discussed
diff --git a/doc/bison.texinfo b/doc/bison.texinfo
index 94a384e0..cf95066a 100644
--- a/doc/bison.texinfo
+++ b/doc/bison.texinfo
@@ -7423,8 +7423,8 @@ factor both as follows.
 
 @comment file: calc++-driver.hh
 @example
-// Announce to Flex the prototype we want for lexing function, ...
-# define YY_DECL					\
+// Tell Flex the lexer's prototype ...
+# define YY_DECL                                        \
   yy::calcxx_parser::token_type                         \
   yylex (yy::calcxx_parser::semantic_type* yylval,      \
          yy::calcxx_parser::location_type* yylloc,      \
@@ -7675,7 +7675,9 @@ unit: assignments exp  @{ driver.result = $2; @};
 assignments: assignments assignment @{@}
            | /* Nothing.  */        @{@};
 
-assignment: "identifier" ":=" exp @{ driver.variables[*$1] = $3; @};
+assignment:
+     "identifier" ":=" exp
+       @{ driver.variables[*$1] = $3; delete $1; @};
 
 %left '+' '-';
 %left '*' '/';
@@ -7683,7 +7685,7 @@ exp: exp '+' exp   @{ $$ = $1 + $3; @}
    | exp '-' exp   @{ $$ = $1 - $3; @}
    | exp '*' exp   @{ $$ = $1 * $3; @}
    | exp '/' exp   @{ $$ = $1 / $3; @}
-   | "identifier"  @{ $$ = driver.variables[*$1]; @}
+   | "identifier"  @{ $$ = driver.variables[*$1]; delete $1; @}
    | "number"      @{ $$ = $1; @};
 %%
 @end example
@@ -7844,8 +7846,8 @@ main (int argc, char *argv[])
       driver.trace_scanning = true;
     else
       @{
-	driver.parse (*argv);
-	std::cout << driver.result << std::endl;
+        driver.parse (*argv);
+        std::cout << driver.result << std::endl;
       @}
 @}
 @end example