Changeset b86f37d for lib/json.c

Timestamp:

2022-08-22T14:48:16Z (2 years ago)

Author:

Jelmer Vernooij <jelmer@…>

Branches:

master

Children:

e9eee04

Parents:

b9572c1

git-author:

Petr Vaněk <arkamar@…> (29-07-22 12:32:01)

git-committer:

Jelmer Vernooij <jelmer@…> (22-08-22 14:48:16)

Message:

Fix error type-punned pointer warning

Dereferencing type-punned pointer will break strict-aliasing rules

Based on upstream[1] commits.

[1] ​https://github.com/json-parser/json-parser

Based-on: 161dff8321df ("Fix error type-punned pointer warning")
Based-on: d7b67db02aaa ("Fix error type-punned pointer warning")
Bug: ​https://bugs.gentoo.org/861371
Signed-off-by: Petr Vaněk <arkamar@…>

File:

• lib/json.c (modified) (2 diffs)

lib/json.c

@@ -140 +140 @@
                         }
 
-                        value->_reserved.object_mem = (*(char **) &value->u.object.values) + values_size;
+                        value->_reserved.object_mem = (void *) (((char *) value->u.object.values) + values_size);
 
                         value->u.object.length = 0;
@@ -407 +407 @@
 
                                                 if (state.first_pass) {
-                                                        (*(json_char **) &top->u.object.values) += string_length + 1;
+                                                        json_char **chars = (json_char **) &top->u.object.values;
+                                                        chars[0] += string_length + 1;
                                                 } else {
                                                         top->u.object.values [top->u.object.length].name