From 68ba42cc897cdc8dadc8e58bcb445dc8c0e29213 Mon Sep 17 00:00:00 2001
From: Alexey Milovidov <milovidov@yandex-team.ru>
Date: Mon, 15 Jul 2019 17:45:56 +0300
Subject: [PATCH] Using std::gcd, lcm instead of boost

---
 dbms/src/Functions/gcd.cpp | 5 +++--
 dbms/src/Functions/lcm.cpp | 5 +++--
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/dbms/src/Functions/gcd.cpp b/dbms/src/Functions/gcd.cpp
index 0373799bd7..d48318ce11 100644
--- a/dbms/src/Functions/gcd.cpp
+++ b/dbms/src/Functions/gcd.cpp
@@ -1,6 +1,7 @@
 #include <Functions/FunctionFactory.h>
 #include <Functions/FunctionBinaryArithmetic.h>
-#include <boost/integer/common_factor.hpp>
+#include <numeric>
+
 
 namespace DB
 {
@@ -15,7 +16,7 @@ struct GCDImpl
     {
         throwIfDivisionLeadsToFPE(typename NumberTraits::ToInteger<A>::Type(a), typename NumberTraits::ToInteger<B>::Type(b));
         throwIfDivisionLeadsToFPE(typename NumberTraits::ToInteger<B>::Type(b), typename NumberTraits::ToInteger<A>::Type(a));
-        return boost::integer::gcd(
+        return std::gcd(
             typename NumberTraits::ToInteger<Result>::Type(a),
             typename NumberTraits::ToInteger<Result>::Type(b));
     }
diff --git a/dbms/src/Functions/lcm.cpp b/dbms/src/Functions/lcm.cpp
index bf2b7e1e79..a76519a660 100644
--- a/dbms/src/Functions/lcm.cpp
+++ b/dbms/src/Functions/lcm.cpp
@@ -1,6 +1,7 @@
 #include <Functions/FunctionFactory.h>
 #include <Functions/FunctionBinaryArithmetic.h>
-#include <boost/integer/common_factor.hpp>
+#include <numeric>
+
 
 namespace DB
 {
@@ -15,7 +16,7 @@ struct LCMImpl
     {
         throwIfDivisionLeadsToFPE(typename NumberTraits::ToInteger<A>::Type(a), typename NumberTraits::ToInteger<B>::Type(b));
         throwIfDivisionLeadsToFPE(typename NumberTraits::ToInteger<B>::Type(b), typename NumberTraits::ToInteger<A>::Type(a));
-        return boost::integer::lcm(
+        return std::lcm(
             typename NumberTraits::ToInteger<Result>::Type(a),
             typename NumberTraits::ToInteger<Result>::Type(b));
     }
-- 
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