restore Build,TODO from r57911

git-svn-id: svn://tug.org/texlive/trunk@57915 c570f23f-e606-0410-a88d-b1316a301751

1 files changed, 51 insertions, 0 deletions

diff --git a/Build/source/libs/gd/libgd-src/tests/gif/bug00499.c b/Build/source/libs/gd/libgd-src/tests/gif/bug00499.c
new file mode 100644
index 00000000000..0fedb927ca4
--- /dev/null
+++ b/Build/source/libs/gd/libgd-src/tests/gif/bug00499.c
@@ -0,0 +1,51 @@
+/**
+ * Test that adding identical images to GIF animations do no double-free
+ *
+ * We are adding two frames to a GIF animation in gdDisposalNone mode, were the
+ * second frame is identical to the first, which result in that image to have
+ * zero extent.  This program must not cause any memory issues.
+ *
+ * See also <https://github.com/libgd/libgd/issues/499>.
+ */
+
+
+#include "gd.h"
+#include "gdtest.h"
+
+
+int main()
+{
+    gdImagePtr im;
+    int black;
+    int size;
+    void * res;
+
+    im = gdImageCreate(100, 100);
+    black = gdImageColorAllocate(im, 0, 0, 0);
+    gdImageRectangle(im, 0, 0, 10, 10, black);
+
+    res = gdImageGifAnimBeginPtr(im, &size, 1, 3);
+    if (res != NULL) {
+        gdFree(res);
+    }
+
+    res = gdImageGifAnimAddPtr(im, &size, 0, 0, 0, 100, gdDisposalNone, NULL);
+    if (res != NULL) {
+        gdFree(res);
+    }
+
+    res = gdImageGifAnimAddPtr(im, &size, 0, 0, 0, 100, gdDisposalNone, im);
+    gdTestAssert(res == NULL);
+    if (res != NULL) {
+         gdFree(res);
+    }
+
+    res = gdImageGifAnimEndPtr(&size);
+    if (res != NULL) {
+        gdFree(res);
+    }
+
+    gdImageDestroy(im);
+
+    return gdNumFailures();
+}