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-rw-r--r--gcc/c-common.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/c-common.c b/gcc/c-common.c
index 41362fa..78b4d85 100644
--- a/gcc/c-common.c
+++ b/gcc/c-common.c
@@ -874,7 +874,7 @@ check_format_info (info, params)
/* We can only check the format if it's a string constant. */
while (TREE_CODE (format_tree) == NOP_EXPR)
format_tree = TREE_OPERAND (format_tree, 0); /* strip coercion */
- if (format_tree == null_pointer_node)
+ if (integer_zerop (format_tree))
{
warning ("null format string");
return;