libmimalloc-sys: change ptr mutability to match the mimalloc c lib

Author: Andronik Ordian

libmimalloc-sys/src/lib.rs

@@ -3,13 +3,13 @@
 use core::ffi::c_void;
 
 extern "C" {
-    pub fn mi_zalloc(size: usize) -> *const c_void;
-    pub fn mi_malloc(size: usize) -> *const c_void;
-    pub fn mi_realloc(p: *const c_void, size: usize) -> *const c_void;
-    pub fn mi_zalloc_aligned(size: usize, alignment: usize) -> *const c_void;
-    pub fn mi_malloc_aligned(size: usize, alignment: usize) -> *const c_void;
-    pub fn mi_realloc_aligned(p: *const c_void, size: usize, alignment: usize) -> *const c_void;
-    pub fn mi_free(p: *const c_void) -> c_void;
+    pub fn mi_zalloc(size: usize) -> *mut c_void;
+    pub fn mi_malloc(size: usize) -> *mut c_void;
+    pub fn mi_realloc(p: *mut c_void, size: usize) -> *mut c_void;
+    pub fn mi_zalloc_aligned(size: usize, alignment: usize) -> *mut c_void;
+    pub fn mi_malloc_aligned(size: usize, alignment: usize) -> *mut c_void;
+    pub fn mi_realloc_aligned(p: *mut c_void, size: usize, alignment: usize) -> *mut c_void;
+    pub fn mi_free(p: *mut c_void) -> c_void;
 }
 
 #[cfg(test)]
@@ -19,19 +19,19 @@ mod tests {
     #[test]
     fn it_frees_memory_malloc() {
         let ptr = unsafe { mi_malloc_aligned(8, 8) } as *mut u8;
-        unsafe { mi_free(ptr as *const c_void) };
+        unsafe { mi_free(ptr as *mut c_void) };
     }
 
     #[test]
     fn it_frees_memory_zalloc() {
         let ptr = unsafe { mi_zalloc_aligned(8, 8) } as *mut u8;
-        unsafe { mi_free(ptr as *const c_void) };
+        unsafe { mi_free(ptr as *mut c_void) };
     }
 
     #[test]
     fn it_frees_memory_realloc() {
         let ptr = unsafe { mi_malloc_aligned(8, 8) } as *mut u8;
-        let ptr = unsafe { mi_realloc_aligned(ptr as *const c_void, 8, 8) } as *mut u8;
-        unsafe { mi_free(ptr as *const c_void) };
+        let ptr = unsafe { mi_realloc_aligned(ptr as *mut c_void, 8, 8) } as *mut u8;
+        unsafe { mi_free(ptr as *mut c_void) };
     }
 }