feat(memory): add SMemZero

storm/Memory.cpp

@@ -70,3 +70,10 @@ void* SMemReAlloc(void* ptr, size_t bytes, const char* filename, int32_t linenum
         return nullptr;
     }
 }
+
+void SMemZero(void* ptr, size_t bytes) {
+    uint8_t* ptrdata = static_cast<uint8_t*>(ptr);
+    for (size_t i = 0; i < bytes; i++) {
+        ptrdata[i] = 0;
+    }
+}

storm/Memory.hpp

@@ -18,4 +18,6 @@ void SMemFree(void* ptr, const char* filename, int32_t linenumber, uint32_t flag
 
 void* SMemReAlloc(void* ptr, size_t bytes, const char* filename, int32_t linenumber, uint32_t flags = 0);
 
+void SMemZero(void* ptr, size_t bytes);
+
 #endif

test/Memory.cpp

@@ -103,3 +103,21 @@ TEST_CASE("SMemReAlloc", "[memory]") {
         SMemFree(ptr2);
     }
 }
+
+TEST_CASE("SMemZero", "[memory]") {
+    std::vector<uint8_t> data = { 1, 255, 128, 42, 69, 99, 13, 37 };
+
+    SECTION("zeroes out memory") {
+        std::vector<uint8_t> result = { 0, 0, 0, 0, 0, 99, 13, 37 };
+        SMemZero(data.data(), 5);
+
+        CHECK_THAT(data, Catch::Matchers::Equals(result));
+    }
+
+    SECTION("does nothing if size is 0") {
+        std::vector<uint8_t> change = data;
+        SMemZero(change.data(), 0);
+
+        CHECK_THAT(change, Catch::Matchers::Equals(data));
+    }
+}