You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
95 lines
3.1 KiB
95 lines
3.1 KiB
9 years ago
|
--- a/gcc/c/c-typeck.c
|
||
|
|
+++ b/gcc/c/c-typeck.c
|
||
|
|
@@ -62,9 +62,9 @@ int in_typeof;
|
||
|
|
if expr.original_code == SIZEOF_EXPR. */
|
||
|
|
tree c_last_sizeof_arg;
|
||
|
|
|
||
|
|
-/* Nonzero if we've already printed a "missing braces around initializer"
|
||
|
|
- message within this initializer. */
|
||
|
|
-static int missing_braces_mentioned;
|
||
|
|
+/* Nonzero if we might need to print a "missing braces around
|
||
|
|
+ initializer" message within this initializer. */
|
||
|
|
+static int found_missing_braces;
|
||
|
|
|
||
|
|
static int require_constant_value;
|
||
|
|
static int require_constant_elements;
|
||
|
|
@@ -6363,6 +6363,9 @@ static int constructor_nonconst;
|
||
|
|
/* 1 if this constructor is erroneous so far. */
|
||
|
|
static int constructor_erroneous;
|
||
|
|
|
||
|
|
+/* 1 if this constructor is the universal zero initializer { 0 }. */
|
||
|
|
+static int constructor_zeroinit;
|
||
|
|
+
|
||
|
|
/* Structure for managing pending initializer elements, organized as an
|
||
|
|
AVL tree. */
|
||
|
|
|
||
|
|
@@ -6524,7 +6527,7 @@ start_init (tree decl, tree asmspec_tree
|
||
|
|
constructor_stack = 0;
|
||
|
|
constructor_range_stack = 0;
|
||
|
|
|
||
|
|
- missing_braces_mentioned = 0;
|
||
|
|
+ found_missing_braces = 0;
|
||
|
|
|
||
|
|
spelling_base = 0;
|
||
|
|
spelling_size = 0;
|
||
|
|
@@ -6619,6 +6622,7 @@ really_start_incremental_init (tree type
|
||
|
|
constructor_type = type;
|
||
|
|
constructor_incremental = 1;
|
||
|
|
constructor_designated = 0;
|
||
|
|
+ constructor_zeroinit = 1;
|
||
|
|
designator_depth = 0;
|
||
|
|
designator_erroneous = 0;
|
||
|
|
|
||
|
|
@@ -6816,11 +6820,8 @@ push_init_level (int implicit, struct ob
|
||
|
|
set_nonincremental_init (braced_init_obstack);
|
||
|
|
}
|
||
|
|
|
||
|
|
- if (implicit == 1 && warn_missing_braces && !missing_braces_mentioned)
|
||
|
|
- {
|
||
|
|
- missing_braces_mentioned = 1;
|
||
|
|
- warning_init (OPT_Wmissing_braces, "missing braces around initializer");
|
||
|
|
- }
|
||
|
|
+ if (implicit == 1)
|
||
|
|
+ found_missing_braces = 1;
|
||
|
|
|
||
|
|
if (TREE_CODE (constructor_type) == RECORD_TYPE
|
||
|
|
|| TREE_CODE (constructor_type) == UNION_TYPE)
|
||
|
|
@@ -6953,16 +6954,23 @@ pop_init_level (int implicit, struct obs
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
+ if (vec_safe_length (constructor_elements) != 1)
|
||
|
|
+ constructor_zeroinit = 0;
|
||
|
|
+
|
||
|
|
+ /* Warn when some structs are initialized with direct aggregation. */
|
||
|
|
+ if (!implicit && found_missing_braces && warn_missing_braces
|
||
|
|
+ && !constructor_zeroinit)
|
||
|
|
+ {
|
||
|
|
+ warning_init (OPT_Wmissing_braces,
|
||
|
|
+ "missing braces around initializer");
|
||
|
|
+ }
|
||
|
|
+
|
||
|
|
/* Warn when some struct elements are implicitly initialized to zero. */
|
||
|
|
if (warn_missing_field_initializers
|
||
|
|
&& constructor_type
|
||
|
|
&& TREE_CODE (constructor_type) == RECORD_TYPE
|
||
|
|
&& constructor_unfilled_fields)
|
||
|
|
{
|
||
|
|
- bool constructor_zeroinit =
|
||
|
|
- (vec_safe_length (constructor_elements) == 1
|
||
|
|
- && integer_zerop ((*constructor_elements)[0].value));
|
||
|
|
-
|
||
|
|
/* Do not warn for flexible array members or zero-length arrays. */
|
||
|
|
while (constructor_unfilled_fields
|
||
|
|
&& (!DECL_SIZE (constructor_unfilled_fields)
|
||
|
|
@@ -8077,6 +8085,9 @@ process_init_element (struct c_expr valu
|
||
|
|
designator_depth = 0;
|
||
|
|
designator_erroneous = 0;
|
||
|
|
|
||
|
|
+ if (!implicit && value.value && !integer_zerop (value.value))
|
||
|
|
+ constructor_zeroinit = 0;
|
||
|
|
+
|
||
|
|
/* Handle superfluous braces around string cst as in
|
||
|
|
char x[] = {"foo"}; */
|
||
|
|
if (string_flag
|