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-rw-r--r--gdb/value.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/gdb/value.c b/gdb/value.c
index eb0cc2c..1ab5f79 100644
--- a/gdb/value.c
+++ b/gdb/value.c
@@ -358,6 +358,26 @@ value_contents_writeable (struct value *value)
return value->aligner.contents;
}
+/* Return non-zero if VAL1 and VAL2 have the same contents. Note that
+ this function is different from value_equal; in C the operator ==
+ can return 0 even if the two values being compared are equal. */
+
+int
+value_contents_equal (struct value *val1, struct value *val2)
+{
+ struct type *type1;
+ struct type *type2;
+ int len;
+
+ type1 = check_typedef (value_type (val1));
+ type2 = check_typedef (value_type (val2));
+ len = TYPE_LENGTH (type1);
+ if (len != TYPE_LENGTH (type2))
+ return 0;
+
+ return (memcmp (value_contents (val1), value_contents (val2), len) == 0);
+}
+
int
value_optimized_out (struct value *value)
{