Make sum() macro a little easier to understand

2008-04-21 12:19:22 -06:00 · 2008-04-21 12:19:22 -06:00 · 6e5a49de25
parent b2700f61e9
commit 6e5a49de25
1 changed files with 1 additions and 1 deletions
--- a/magic.c
+++ b/magic.c
@ -34,8 +34,8 @@

 #define sum(a, b, v, m)     \
  if (b < -v) {             \
-    a = -1 * (b + v);       \
    v *= -1;                \
+    a = v - b;              \
  } else if (m - b <= v) {  \
    v *= -1;                \
    a = m - (m - b) + v;    \