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fix unsigned negation

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This commit is contained in:
Anatol Belski 2014-09-15 11:59:48 +02:00
parent d3622c2445
commit 4e09d782ef
1 changed files with 1 additions and 1 deletions
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2
Zend/zend_ast.c
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@ -163,7 +163,7 @@ ZEND_API zend_ast *zend_ast_create_list(uint32_t init_children, zend_ast_kind ki
}
static inline zend_bool is_power_of_two(uint32_t n) {
return n == (n & -n);
return ((n != 0) && (n == (n & (~n + 1))));
}
ZEND_API zend_ast *zend_ast_list_add(zend_ast *ast, zend_ast *op) {