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-rw-r--r--test/sizeof-vla.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/test/sizeof-vla.c b/test/sizeof-vla.c
new file mode 100644
index 0000000..16d6fa1
--- /dev/null
+++ b/test/sizeof-vla.c
@@ -0,0 +1,19 @@
+int c = 0;
+int main(void) {
+ int r = 0;
+ int l = 2;
+ int (*p)[l] = 0;
+ r += sizeof(c++, p) != sizeof(int (*)[]); /* VM, but not VLA */
+ r += c != 0;
+ r += sizeof(*(c++, p)) != 2 * sizeof(int); /* VLA */
+ r += c != 1;
+ r += sizeof(c++, *p) != sizeof(int *); /* VLA decayed to pointer */
+ r += c != 1;
+ r += sizeof(int[++l]) != 3 * sizeof(int); /* VLA */
+ r += l != 3;
+ r += sizeof(int[++l][1]) != sizeof(int[4][1]); /* VLA */
+ r += l != 4;
+ r += sizeof(int[(c++, 5)]) != 5 * sizeof(int); /* VLA */
+ r += c != 2;
+ return r;
+}