source file of the GNU LilyPond music typesetter
- (c) 1997--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
#include "offset.hh"
-#include <cmath>
#ifndef STANDALONE
-String
+string
Offset::to_string () const
{
- String s;
- s = String (" (") + ::to_string (coordinate_a_[X_AXIS]) + ", "
+ string s;
+ s = string (" (") + ::to_string (coordinate_a_[X_AXIS]) + ", "
+ ::to_string (coordinate_a_[Y_AXIS]) + ")";
return s;
}
Offset z;
if (!isinf_b (z2[Y_AXIS]))
{
- z[X_AXIS] = z1[X_AXIS] * z2[X_AXIS] - z1[Y_AXIS]*z2[Y_AXIS];
+ z[X_AXIS] = z1[X_AXIS] * z2[X_AXIS] - z1[Y_AXIS] * z2[Y_AXIS];
z[Y_AXIS] = z1[X_AXIS] * z2[Y_AXIS] + z1[Y_AXIS] * z2[X_AXIS];
}
return z;
Real r = exp (o[X_AXIS]);
- return Offset (r*c, r*s);
+ return Offset (r * c, r * s);
}
Real
Real
Offset::length () const
{
- return sqrt (sqr (coordinate_a_[X_AXIS]) + sqr (coordinate_a_[Y_AXIS]));
+ return sqrt (sqr (coordinate_a_[X_AXIS])
+ + sqr (coordinate_a_[Y_AXIS]));
+}
+
+bool
+Offset::is_sane () const
+{
+ return !isnan (coordinate_a_[X_AXIS])
+ && !isnan (coordinate_a_ [Y_AXIS])
+ && !isinf (coordinate_a_[X_AXIS])
+ && !isnan (coordinate_a_[Y_AXIS]);
}