Use std namespace.

I had to rename distance() (in coord.h) to distance2() because it conflicts
with the STL function to compare 2 iterators. Not a bad change given how it
returns the square of the distance anyway.
I also had to rename the message global variable (in message.cc) to buffer.

I tried to fix and improve the coding style has much as I could, but I
probably missed a few given how huge and tedious it is.

I also didn't touch crawl-gdb.py, and the stuff in prebuilt, rltiles/tool
and util/levcomp.*, because I have no clue about those.

1 files changed, 4 insertions, 4 deletions

diff --git a/crawl-ref/source/losglobal.cc b/crawl-ref/source/losglobal.cc
index 712bd826d8..56f4b25f2f 100644
--- a/crawl-ref/source/losglobal.cc
+++ b/crawl-ref/source/losglobal.cc
@@ -52,10 +52,10 @@ static void _save_los(los_def* los, los_type l)
 // Opacity at p has changed.
 void invalidate_los_around(const coord_def& p)
 {
-    int x1 = std::max(p.x - LOS_MAX_RANGE, 0);
-    int y1 = std::max(p.y - LOS_MAX_RANGE, 0);
-    int x2 = std::min(p.x, GXM - 1);
-    int y2 = std::min(p.y + LOS_MAX_RANGE, GYM - 1);
+    int x1 = max(p.x - LOS_MAX_RANGE, 0);
+    int y1 = max(p.y - LOS_MAX_RANGE, 0);
+    int x2 = min(p.x, GXM - 1);
+    int y2 = min(p.y + LOS_MAX_RANGE, GYM - 1);
     for (int y = y1; y <= y2; y++)
         for (int x = x1; x <= x2; x++)
             if (sqr(p.x - x) + sqr(p.y - y) <= sqr(LOS_MAX_RANGE) + 1)