From 5904badec79656396879ec21b74ec1c91afc638f Mon Sep 17 00:00:00 2001
From: Gav Wood <i@gavwood.com>
Date: Wed, 29 Jul 2015 10:42:48 +0200
Subject: [PATCH] Use boost counterparts. Apparently std::random and
 boost::random are not reliably interoperable.

---
 libdevcore/CommonData.cpp        | 6 +++---
 libdevcore/FixedHash.h           | 3 ++-
 libdevcore/vector_ref.h          | 3 ++-
 libethash-cl/ethash_cl_miner.cpp | 3 ++-
 4 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/libdevcore/CommonData.cpp b/libdevcore/CommonData.cpp
index a2d4ce1e0..7a6e7ff55 100644
--- a/libdevcore/CommonData.cpp
+++ b/libdevcore/CommonData.cpp
@@ -20,7 +20,7 @@
  */
 
 #include "CommonData.h"
-
+#include <boost/random/uniform_int_distribution.hpp>
 #include "Exceptions.h"
 #include "Log.h"
 
@@ -58,9 +58,9 @@ std::string dev::escaped(std::string const& _s, bool _all)
 std::string dev::randomWord()
 {
 	static std::mt19937_64 s_eng(0);
-	std::string ret(std::uniform_int_distribution<int>(1, 5)(s_eng), ' ');
+	std::string ret(boost::random::uniform_int_distribution<int>(1, 5)(s_eng), ' ');
 	char const n[] = "qwertyuiop";//asdfghjklzxcvbnmQWERTYUIOPASDFGHJKLZXCVBNM1234567890";
-	std::uniform_int_distribution<int> d(0, sizeof(n) - 2);
+	boost::random::uniform_int_distribution<int> d(0, sizeof(n) - 2);
 	for (char& c: ret)
 		c = n[d(s_eng)];
 	return ret;
diff --git a/libdevcore/FixedHash.h b/libdevcore/FixedHash.h
index 7c612970a..af67269a1 100644
--- a/libdevcore/FixedHash.h
+++ b/libdevcore/FixedHash.h
@@ -27,6 +27,7 @@
 #include <cstdint>
 #include <algorithm>
 #include <boost/random/random_device.hpp>
+#include <boost/random/uniform_int_distribution.hpp>
 #include "CommonData.h"
 
 namespace dev
@@ -154,7 +155,7 @@ public:
 	{
 		FixedHash ret;
 		for (auto& i: ret.m_data)
-			i = (uint8_t)std::uniform_int_distribution<uint16_t>(0, 255)(_eng);
+			i = (uint8_t)boost::random::uniform_int_distribution<uint16_t>(0, 255)(_eng);
 		return ret;
 	}
 
diff --git a/libdevcore/vector_ref.h b/libdevcore/vector_ref.h
index ca5ac3753..c7ba3a437 100644
--- a/libdevcore/vector_ref.h
+++ b/libdevcore/vector_ref.h
@@ -7,6 +7,7 @@
 #include <string>
 #include <random>
 #include <boost/random/random_device.hpp>
+#include <boost/random/uniform_int_distribution.hpp>
 
 namespace dev
 {
@@ -76,7 +77,7 @@ public:
 	{
 		uint8_t* e = (uint8_t*)end();
 		for (uint8_t* i = (uint8_t*)begin(); i != e; ++i)
-			*i = (uint8_t)std::uniform_int_distribution<uint16_t>(0, 255)(_eng);
+			*i = (uint8_t)boost::random::uniform_int_distribution<uint16_t>(0, 255)(_eng);
 	}
 	/// @returns a random valued object.
 	void randomize() { randomize(s_vectorRefEngine); }
diff --git a/libethash-cl/ethash_cl_miner.cpp b/libethash-cl/ethash_cl_miner.cpp
index 7e2573303..fa1dda8eb 100644
--- a/libethash-cl/ethash_cl_miner.cpp
+++ b/libethash-cl/ethash_cl_miner.cpp
@@ -32,6 +32,7 @@
 #include <vector>
 #include <random>
 #include <boost/random/random_device.hpp>
+#include <boost/random/uniform_int_distribution.hpp>
 #include <libethash/util.h>
 #include <libethash/ethash.h>
 #include <libethash/internal.h>
@@ -472,7 +473,7 @@ void ethash_cl_miner::search(uint8_t const* header, uint64_t target, search_hook
 
 		unsigned buf = 0;
 		boost::random_device engine;
-		uint64_t start_nonce = uniform_int_distribution<uint64_t>()(engine);
+		uint64_t start_nonce = boost::random::uniform_int_distribution<uint64_t>()(engine);
 		for (;; start_nonce += m_globalWorkSize)
 		{
 			auto t = chrono::high_resolution_clock::now();