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-rw-r--r--gcc/c-parse.y10
1 files changed, 8 insertions, 2 deletions
diff --git a/gcc/c-parse.y b/gcc/c-parse.y
index aba326d02b9..4f0b1afe97c 100644
--- a/gcc/c-parse.y
+++ b/gcc/c-parse.y
@@ -1910,8 +1910,14 @@ label: CASE expr_no_commas ':'
if (value != error_mark_node)
{
tree duplicate;
- int success = pushcase (value, convert_and_check,
- label, &duplicate);
+ int success;
+
+ if (pedantic && ! INTEGRAL_TYPE_P (TREE_TYPE (value)))
+ pedwarn ("label must have integral type in ANSI C");
+
+ success = pushcase (value, convert_and_check,
+ label, &duplicate);
+
if (success == 1)
error ("case label not within a switch statement");
else if (success == 2)
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