From 8a2444201ac4856e77b46220cb91beb8e8b3c34d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ion=20Gazta=C3=B1aga?= <igaztanaga@gmail.com>
Date: Tue, 3 Nov 2020 10:59:19 +0100
Subject: [PATCH] Avoid GCC's overflow warnings for operator new.

---
 test/default_init_test.hpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/test/default_init_test.hpp b/test/default_init_test.hpp
index 2e83a36..7d6bedc 100644
--- a/test/default_init_test.hpp
+++ b/test/default_init_test.hpp
@@ -12,8 +12,10 @@
 #define BOOST_CONTAINER_TEST_DEFAULT_INIT_TEST_HEADER
 
 #include <boost/container/detail/config_begin.hpp>
+#include <boost/container/throw_exception.hpp>
 #include <cstddef>
 
+
 namespace boost{
 namespace container {
 namespace test{
@@ -57,6 +59,10 @@ class default_init_allocator
 
    Integral* allocate(std::size_t n)
    {
+      const std::size_t max_count = std::size_t(-1)/(2*sizeof(Integral));
+      if(BOOST_UNLIKELY(n > max_count))
+         throw_bad_alloc();
+
       //Initialize memory to a pattern
       const std::size_t max = sizeof(Integral)*n;
       unsigned char *puc_raw = ::new unsigned char[max];