Run `make grand-replace'.

[lilypond.git] / flower / include / real.hh

diff --git a/flower/include/real.hh b/flower/include/real.hh
index 0533af2111a5510ce0624bf674f805fa8b5a1563..9ab3540ce4412e8fb929dd699baccd613be5bc25 100644 (file)
--- a/flower/include/real.hh
+++ b/flower/include/real.hh
@@ -1,16 +1,47 @@
+/*
+  real.hh -- declare Real
+
+  source file of the Flower Library
+
+  (c) 1997--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
+
 #ifndef REAL_HH
 #define REAL_HH
 
-
-#include <builtin.h>
-#include <minmax.h>
-#include <math.h>
+#include <algorithm>
+#include <climits>
+#include <cmath>
+using namespace std;
 
 typedef double Real;
+extern const Real infinity_f;
+
+/* namespace std { */
+  
+template<class T> inline T abs (T x)
+{
+  return x > 0 ? x : -x;
+}
+
+/* } namespace std */
 
 inline Real
-distance(Real x,Real y)
+distance (Real x, Real y)
 {
-    return abs(x-y);
+  return abs (x - y);
 }
+
+template<class T> inline int sign (T x)
+{
+  if (x)
+    return x > T (0) ? 1 : -1;
+  return 0;
+}
+
+template<class T> inline T sqr (T x)
+{
+  return x * x;
+}
+
 #endif