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-rw-r--r--stdio-common/vfprintf.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/stdio-common/vfprintf.c b/stdio-common/vfprintf.c
index db6f3e4842..1cd8d2178a 100644
--- a/stdio-common/vfprintf.c
+++ b/stdio-common/vfprintf.c
@@ -1514,7 +1514,11 @@ group_number (CHAR_T *w, CHAR_T *rear_ptr, const CHAR_T *grouping,
if (*grouping == '\0')
/* The previous grouping repeats ad infinitum. */
--grouping;
- else if (*grouping == CHAR_MAX || *grouping < 0)
+ else if (*grouping == CHAR_MAX
+#if CHAR_MIN < 0
+ || *grouping < 0
+#endif
+ )
{
/* No further grouping to be done.
Copy the rest of the number. */