diff options
Diffstat (limited to 'mesalib/src/glsl/glcpp/glcpp-parse.y')
| -rw-r--r-- | mesalib/src/glsl/glcpp/glcpp-parse.y | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/mesalib/src/glsl/glcpp/glcpp-parse.y b/mesalib/src/glsl/glcpp/glcpp-parse.y index e88e48057..5ece8b3bb 100644 --- a/mesalib/src/glsl/glcpp/glcpp-parse.y +++ b/mesalib/src/glsl/glcpp/glcpp-parse.y @@ -398,7 +398,12 @@ expression: $$ = $1 % $3;
}
| expression '/' expression {
- $$ = $1 / $3;
+ if ($3 == 0) {
+ yyerror (& @1, parser,
+ "division by 0 in preprocessor directive");
+ } else {
+ $$ = $1 / $3;
+ }
}
| expression '*' expression {
$$ = $1 * $3;
@@ -825,10 +830,31 @@ _token_list_trim_trailing_space (token_list_t *list) }
int
+_token_list_is_empty_ignoring_space (token_list_t *l)
+{
+ token_node_t *n;
+
+ if (l == NULL)
+ return 1;
+
+ n = l->head;
+ while (n != NULL && n->token->type == SPACE)
+ n = n->next;
+
+ return n == NULL;
+}
+
+int
_token_list_equal_ignoring_space (token_list_t *a, token_list_t *b)
{
token_node_t *node_a, *node_b;
+ if (a == NULL || b == NULL) {
+ int a_empty = _token_list_is_empty_ignoring_space(a);
+ int b_empty = _token_list_is_empty_ignoring_space(b);
+ return a_empty == b_empty;
+ }
+
node_a = a->head;
node_b = b->head;
|