From a7fdb162a6dc0fc4255988154566aafc94e9ff9d Mon Sep 17 00:00:00 2001
From: Timo Alho <tisaalho@gmail.com>
Date: Tue, 26 May 2020 14:28:12 +0300
Subject: [PATCH 1/2] Remove unneeded headers to keep iostream from pulling in
 10^5  bytes

Admittedly it's a bit brute force to just remove the header inclusions, and that it works is based on all the iostream -related code being in templates, so that when they're not used there's no problem. Of you do use them, you have to include <iostream> yourself (and I'm not 100% sure that there won't be restrictions in order of includes).

Another approach, maybe more robust but less elegant, would be to #ifdef out the iostream headers if some flag (PCG_DONOTUSEIOSTREAM ? ) is defined

Removing <new> is not absolutely necessary, but I'm not sure what it's used for here, the only relevant part I could find is one use of placement new?
---
 include/pcg_extras.hpp | 2 --
 include/pcg_random.hpp | 3 ---
 2 files changed, 5 deletions(-)

diff --git a/include/pcg_extras.hpp b/include/pcg_extras.hpp
index 8445ca2..f2fdf42 100644
--- a/include/pcg_extras.hpp
+++ b/include/pcg_extras.hpp
@@ -39,10 +39,8 @@
 #include <cstring>
 #include <cassert>
 #include <limits>
-#include <iostream>
 #include <type_traits>
 #include <utility>
-#include <locale>
 #include <iterator>
 
 #ifdef __GNUC__
diff --git a/include/pcg_random.hpp b/include/pcg_random.hpp
index 4ab37cc..25963bf 100644
--- a/include/pcg_random.hpp
+++ b/include/pcg_random.hpp
@@ -80,12 +80,9 @@
 #include <cstring>
 #include <cassert>
 #include <limits>
-#include <iostream>
 #include <iterator>
 #include <type_traits>
 #include <utility>
-#include <locale>
-#include <new>
 #include <stdexcept>
 
 #ifdef _MSC_VER

From 7ad3b1c997efb98a674b0da1a3a55aac865870b7 Mon Sep 17 00:00:00 2001
From: Timo Alho <tisaalho@gmail.com>
Date: Tue, 26 May 2020 14:45:56 +0300
Subject: [PATCH 2/2] Fix tests

---
 sample/codebook.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sample/codebook.cpp b/sample/codebook.cpp
index 3e8d5ee..ebc8a59 100644
--- a/sample/codebook.cpp
+++ b/sample/codebook.cpp
@@ -23,10 +23,10 @@
  * Outputs a little spy codebook
  */
 
-#include "pcg_random.hpp"
 #include <cstdio>
 #include <iostream>
 #include <random>
+#include "pcg_random.hpp"
 
 int main()
 {