Bug#818814: mlpack: FTBFS with libc 2.23: there are no arguments to 'isnan' that depend on a template parameter

[Graham Inggs]

Control: tags -1 patch

Hi Maintainer

Please find a patch for this issue, as applied in Ubuntu.

Regards
Graham


Description: Fix build with glibc 2.23
Bug: https://github.com/mlpack/mlpack/issues/522
Bug-Debian: https://bugs.debian.org/818814
Origin: upstream, https://github.com/mlpack/mlpack/commit/c751e61c8e37360c93b664597c189fb984f32de2
Author: Ryan Curtin <r...@ratml.org>
Last-Update: 2016-02-16
--- a/src/mlpack/methods/kmeans/kmeans_impl.hpp
+++ b/src/mlpack/methods/kmeans/kmeans_impl.hpp
@@ -175,7 +175,7 @@
     iteration++;
     Log::Info << "KMeans::Cluster(): iteration " << iteration << ", residual "
         << cNorm << ".\n";
-    if (isnan(cNorm) || isinf(cNorm))
+    if (std::isnan(cNorm) || std::isinf(cNorm))
       cNorm = 1e-4; // Keep iterating.
 
   } while (cNorm > 1e-5 && iteration != maxIterations);