Return -1 for error in printf

2018-07-03 09:48:21 +08:00
parent 0d61f9f4fd
commit e9cecfead3
1 changed files with 2 additions and 2 deletions
@@ -97,11 +97,11 @@ pub unsafe fn printf<W: Write>(mut w: W, format: *const c_char, mut ap: VaList)
                '#' => Ok(()),
                '0'...'9' => Ok(()),
                _ => Ok(()),
-            }.expect("Error writing!")
+            }.map_err(|_| return -1).unwrap()
        } else if b == b'%' {
            found_percent = true;
        } else {
-            w.write_u8(b).expect("Error writing char!");
+            w.write_u8(b).map_err(|_| return -1).unwrap()
        }
    }