[PATCH 2/7] libpager: fix assertion unsigned against 0

[Etienne Brateau]

Comparing an unsigned to be superior or equals to 0 is always true,
instead move the assert before the substraction and compare it to the
value to substract.
---
 libpager/pager-memcpy.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/libpager/pager-memcpy.c b/libpager/pager-memcpy.c
index 12515933..5a5aac2a 100644
--- a/libpager/pager-memcpy.c
+++ b/libpager/pager-memcpy.c
@@ -130,13 +130,13 @@ pager_memcpy (struct pager *pager, memory_object_t memobj,
              
              vm_deallocate (mach_task_self (), window, window_size);
 
+             assert_backtrace (n >= copy_count);
+             assert_backtrace (to_copy >= copy_count);
+
              offset += copy_count;
              other += copy_count;
              to_copy -= copy_count;
              n -= copy_count;
-
-             assert_backtrace (n >= 0);
-             assert_backtrace (to_copy >= 0);
            }
          while (to_copy > 0);
          
-- 
2.34.1