Fix: Failing Rc tests

.github/workflows/ci.yml

@@ -102,4 +102,4 @@ jobs:
     - name: Upload report
       uses: github/codeql-action/upload-sarif@v1
       with:
-        sarif_file: reports
+        sarif_file: reports

src/rc_ptr/mod.rs

@@ -20,6 +20,6 @@ use std::rc::Rc;
 /// If allocation is not possible due to issues with memory layouts or not enough memory,
 /// it will return an [AllocError](crate::alloc_error::AllocError)
 pub fn alloc<T: Sized>() -> Result<Rc<T>, alloc_error::AllocError> {
-    let value_ptr = util_alloc::alloc_value()?;
-    Ok(unsafe { Rc::from_raw(value_ptr) })
+    let rc_ptr: *mut Rc<T> = util_alloc::alloc_zeroed_value()?;
+    Ok((unsafe { &*rc_ptr }).clone())
 }

src/util/alloc.rs

@@ -32,3 +32,19 @@ pub fn alloc_value<T: Sized>() -> Result<*mut T, alloc_error::AllocError> {
         Ok(value_ptr as *mut T)
     }
 }
+
+#[inline]
+pub fn alloc_zeroed_value<T: Sized>() -> Result<*mut T, alloc_error::AllocError> {
+    let layout = alloc::Layout::new::<T>();
+
+    let value_ptr = unsafe { alloc::alloc_zeroed(layout) };
+
+    if value_ptr.is_null() {
+        Err(alloc_error::AllocError::new(
+            "Failed to allocate a value",
+            alloc_error::AllocErrorType::FailedAllocation,
+        ))
+    } else {
+        Ok(value_ptr as *mut T)
+    }
+}

tests/rc_tests.rs

@@ -28,7 +28,7 @@ unsafe impl GlobalAlloc for SmallMemoryAllocator {
 static GLOBAL: SmallMemoryAllocator = SmallMemoryAllocator;
 
 struct SmallType([u128; 10]);
-struct BigType([u128; 1000000]);
+struct BigType([u128; 10000000000]);
 
 #[test]
 fn with_enough_mem_it_allocates() {