getPowerDeriv: workaround for MS Visual Studio

2010-12-22 13:50:13 +01:00 · 2010-12-22 13:50:13 +01:00 · 1428fcb9f8
parent 94f82b312b
commit 1428fcb9f8
1 changed files with 3 additions and 0 deletions
--- a/DataTree.cc
+++ b/DataTree.cc
@ -634,6 +634,9 @@ DataTree::writePowerDeriv(ostream &output, bool use_dll) const
           << " */" << endl
           << "double getPowerDeriv(double x, double p, int k)" << endl
           << "{" << endl
+           << "#ifdef _MSC_VER" << endl
+           << "# define nearbyint(x) (fabs((x)-floor(x)) < fabs((x)-ceil(x)) ? floor(x) : ceil(x))" << endl
+           << "#endif" << endl
           << "  if ( fabs(x) < " << NEAR_ZERO << " && p > 0 && k >= p && fabs(p-nearbyint(p)) < " << NEAR_ZERO << " )" << endl
           << "    return 0.0;" << endl
           << "  else" << endl