From 1b0f90ca333ddbf7ed57eba28465fbb922daa957 Mon Sep 17 00:00:00 2001
From: matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 7 May 2004 08:44:24 +0000
Subject: * parse.y (string_content): turn off NODE_NEWLINE flag to avoid  
 unnecessary line trace for inlined expression.   (ruby-bugs PR#1320)

* numeric.c (flo_to_s): tweak output string based to preserve
  decimal point and to remove trailing zeros.  [ruby-talk:97891]

* string.c (rb_str_index_m): use unsigned comparison for T_FIXNUM
  search.  [ruby-talk:97342]

* hash.c (rb_hash_equal): returns true if two hashes have same set
  of key-value set.  [ruby-talk:97559]

* hash.c (rb_hash_eql): returns true if two hashes are equal and
  have same default values.

* string.c (rb_str_equal): always returns true or false, never
  returns nil. [ruby-dev:23404]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@6262 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ext/dbm/dbm.c | 20 +++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

(limited to 'ext/dbm')

diff --git a/ext/dbm/dbm.c b/ext/dbm/dbm.c
index c422394405..1e4fe00fe7 100644
--- a/ext/dbm/dbm.c
+++ b/ext/dbm/dbm.c
@@ -280,6 +280,16 @@ fdbm_values_at(argc, argv, obj)
     return new;
 }
 
+static void
+fdbm_modify(obj)
+    VALUE obj;
+{
+    rb_secure(4);
+    if (OBJ_FROZEN_P(obj)) {
+	if (OBJ_FROZEN(obj)) rb_error_frozen("DBM");
+    }
+}
+
 static VALUE
 fdbm_delete(obj, keystr)
     VALUE obj, keystr;
@@ -289,7 +299,7 @@ fdbm_delete(obj, keystr)
     DBM *dbm;
     VALUE valstr;
 
-    rb_secure(4);
+    fdbm_modify(obj);
     StringValue(keystr);
     key.dptr = RSTRING(keystr)->ptr;
     key.dsize = RSTRING(keystr)->len;
@@ -325,7 +335,7 @@ fdbm_shift(obj)
     DBM *dbm;
     VALUE keystr, valstr;
 
-    rb_secure(4);
+    fdbm_modify(obj);
     GetDBM(obj, dbmp);
     dbm = dbmp->di_dbm;
     dbmp->di_size = -1;
@@ -351,7 +361,7 @@ fdbm_delete_if(obj)
     VALUE ret, ary = rb_ary_new();
     int i, status = 0, n;
 
-    rb_secure(4);
+    fdbm_modify(obj);
     GetDBM(obj, dbmp);
     dbm = dbmp->di_dbm;
     n = dbmp->di_size;
@@ -388,7 +398,7 @@ fdbm_clear(obj)
     struct dbmdata *dbmp;
     DBM *dbm;
 
-    rb_secure(4);
+    fdbm_modify(obj);
     GetDBM(obj, dbmp);
     dbm = dbmp->di_dbm;
     dbmp->di_size = -1;
@@ -471,7 +481,7 @@ fdbm_store(obj, keystr, valstr)
     struct dbmdata *dbmp;
     DBM *dbm;
 
-    rb_secure(4);
+    fdbm_modify(obj);
     keystr = rb_obj_as_string(keystr);
 
     key.dptr = RSTRING(keystr)->ptr;
-- 
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