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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 3de1e92..9dc881a 100644
--- a/gcc/c-common.c
+++ b/gcc/c-common.c
@@ -1795,7 +1795,7 @@ check_format_info (info, params)
++fci;
if (fci->format_chars == 0)
{
- if (format_char >= 040 && format_char < 0177)
+ if (ISGRAPH(format_char))
warning ("unknown conversion type character `%c' in format",
format_char);
else