From 41c92cfc3c2240836d3f4014081626a7e2404024 Mon Sep 17 00:00:00 2001
From: Matthieu Gautier <mgautier@kymeria.fr>
Date: Mon, 27 Nov 2017 12:39:04 +0000
Subject: [PATCH] Better calculate the start of the last search page.

The increment between pages should always be a multiple of
`resultCountPerPage`.
---
 src/searcher.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/searcher.cpp b/src/searcher.cpp
index 4010bdc87..c7c6222f3 100644
--- a/src/searcher.cpp
+++ b/src/searcher.cpp
@@ -17,6 +17,9 @@
  * MA 02110-1301, USA.
  */
 
+
+#include <cmath>
+
 #include "searcher.h"
 #include "kiwixlib-resources.h"
 #include "reader.h"
@@ -432,7 +435,7 @@ string Searcher::getHtml()
   oData["resultRange"] = this->resultCountPerPage;
   oData["resultLastPageStart"]
       = this->estimatedResultCount > this->resultCountPerPage
-            ? this->estimatedResultCount - this->resultCountPerPage
+            ? std::round(this->estimatedResultCount / this->resultCountPerPage) * this->resultCountPerPage
             : 0;
   oData["protocolPrefix"] = this->protocolPrefix;
   oData["searchProtocolPrefix"] = this->searchProtocolPrefix;