1 files changed, 22 insertions, 0 deletions
diff --git a/src/waffle/core/wcore_util.c b/src/waffle/core/wcore_util.c
index b2dafe4..eee064d 100644
--- a/src/waffle/core/wcore_util.c
+++ b/src/waffle/core/wcore_util.c
@@ -28,6 +28,28 @@
 #include "wcore_error.h"
 #include "wcore_util.h"
 
+bool
+wcore_add_size(size_t *res, size_t x, size_t y)
+{
+    if (x > SIZE_MAX - y) {
+        return false;
+    }
+
+    *res = x + y;
+    return true;
+}
+
+bool
+wcore_mul_size(size_t *res, size_t x, size_t y)
+{
+    if (x > SIZE_MAX / y) {
+        return false;
+    }
+
+    *res = x * y;
+    return true;
+}
+
 void*
 wcore_malloc(size_t size)
 {