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This file is part of MXE. See LICENSE.md for licensing information.
Taken from: https://github.com/mariusmuja/flann/commit/3645f0c30a47267e56e5acdecfc7bac2b76bc3d5
From 3645f0c30a47267e56e5acdecfc7bac2b76bc3d5 Mon Sep 17 00:00:00 2001
From: Alastair Quadros <alastair.j.quadros@gmail.com>
Date: Sun, 15 Mar 2015 10:58:57 +1100
Subject: [PATCH] abs -> std::abs
diff --git a/src/cpp/flann/algorithms/kdtree_index.h b/src/cpp/flann/algorithms/kdtree_index.h
index 42659ca..fc12d8f 100644
--- a/src/cpp/flann/algorithms/kdtree_index.h
+++ b/src/cpp/flann/algorithms/kdtree_index.h
@@ -36,6 +36,7 @@
#include <cassert>
#include <cstring>
#include <stdarg.h>
+#include <cmath>
#include "flann/general.h"
#include "flann/algorithms/nn_index.h"
@@ -663,7 +664,7 @@
ElementType max_span = 0;
size_t div_feat = 0;
for (size_t i=0;i<veclen_;++i) {
- ElementType span = abs(point[i]-leaf_point[i]);
+ ElementType span = std::abs(point[i]-leaf_point[i]);
if (span > max_span) {
max_span = span;
div_feat = i;
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