automatic malloc need detection for new

1 files changed, 38 insertions, 0 deletions

diff --git a/tests/new.cpp b/tests/new.cpp
new file mode 100644
index 00000000..3e09fbc1
--- /dev/null
+++ b/tests/new.cpp
@@ -0,0 +1,38 @@
+// Emscripten tests
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+
+struct Structy { char data[100]; int x; };
+
+int main() {
+  int NUM = 100;
+  char* allocations[NUM];
+  for (int i = 0; i < NUM/2; i++) {
+    allocations[i] = (char*){{{ NEW }}};
+    assert(allocations[i]);
+    if (i > 10 && i%4 == 1 && allocations[i-10]) {
+      {{{ DELETE }}}(allocations[i-10]);
+      allocations[i-10] = NULL;
+    }
+  }
+  for (int i = NUM/2; i < NUM; i++) {
+    allocations[i] = (char*){{{ NEW }}};
+    assert(allocations[i]);
+    if (i > 10 && i%4 != 1 && allocations[i-10]) {
+      {{{ DELETE }}}(allocations[i-10]);
+      allocations[i-10] = NULL;
+    }
+  }
+  char* first = allocations[0];
+  for (int i = 0; i < NUM; i++) {
+    if (allocations[i]) {
+      {{{ DELETE }}}(allocations[i]);
+    }
+  }
+  char *last = (char*){{{ NEW }}}; /* should be identical, as we free'd it all */
+  char *newer = (char*){{{ NEW }}}; /* should be different */
+  printf("*%d,%d*\n", first == last, first == newer);
+}
+