Fix warning: pointer of type ‘void *’ used in arithmetic

Signed-off-by: Ray Lehtiniemi <rayl@mail.com>

diff --git a/src/framework/mlt_pool.c b/src/framework/mlt_pool.c
index b708f87..ebf0081 100644 (file)
--- a/src/framework/mlt_pool.c
+++ b/src/framework/mlt_pool.c
@@ -137,7 +137,7 @@ static void *pool_fetch( mlt_pool this )
                                release->references = 1;
 
                                // Determine the ptr
-                               ptr = ( void * )release + sizeof( struct mlt_release_s );
+                               ptr = ( char * )release + sizeof( struct mlt_release_s );
                        }
                }
 
@@ -161,7 +161,7 @@ static void pool_return( void *ptr )
        if ( ptr != NULL )
        {
                // Get the release pointer
-               mlt_release that = ptr - sizeof( struct mlt_release_s );
+               mlt_release that = ( void * )(( char * )ptr - sizeof( struct mlt_release_s ));
 
                // Get the pool
                mlt_pool this = that->pool;
@@ -186,7 +186,7 @@ static void pool_return( void *ptr )
        if ( ptr != NULL )
        {
                // Free the release itself
-               free( ptr - sizeof( struct mlt_release_s ) );
+               free( ( char * )ptr - sizeof( struct mlt_release_s ) );
        }
 }
 
@@ -207,7 +207,7 @@ static void pool_close( mlt_pool this )
                while ( ( release = mlt_deque_pop_back( this->stack ) ) != NULL )
                {
                        // We'll free this item now
-                       free( release - sizeof( struct mlt_release_s ) );
+                       free( ( char * )release - sizeof( struct mlt_release_s ) );
                }
 
                // We can now close the stack
@@ -293,7 +293,7 @@ void *mlt_pool_realloc( void *ptr, int size )
        if ( ptr != NULL )
        {
                // Get the release pointer
-               mlt_release that = ptr - sizeof( struct mlt_release_s );
+               mlt_release that = ( void * )(( char * )ptr - sizeof( struct mlt_release_s ));
 
                // If the current pool this ptr belongs to is big enough
                if ( size > that->pool->size - sizeof( struct mlt_release_s ) )
@@ -346,7 +346,7 @@ void mlt_pool_purge( )
 
                // We'll free all unused items now
                while ( ( release = mlt_deque_pop_back( this->stack ) ) != NULL )
-                       free( release - sizeof( struct mlt_release_s ) );
+                       free( ( char * )release - sizeof( struct mlt_release_s ) );
 
                // Unlock the pool
                pthread_mutex_unlock( &this->lock );