From 79dfd99d305446a0857cc9d58057d5a3bdcfa62f Mon Sep 17 00:00:00 2001
From: Marshall Clow <mclow.lists@gmail.com>
Date: Mon, 2 Nov 2015 15:29:13 +0000
Subject: [PATCH] Remove undefined behavior from some tests. Same pattern as
 the unitialized_copy tests

llvm-svn: 251804
---
 .../uninitialized_fill_n.pass.cpp                   | 13 ++++++++-----
 .../uninitialized.fill/uninitialized_fill.pass.cpp  | 13 ++++++++-----
 2 files changed, 16 insertions(+), 10 deletions(-)

diff --git a/libcxx/test/std/utilities/memory/specialized.algorithms/uninitialized.fill.n/uninitialized_fill_n.pass.cpp b/libcxx/test/std/utilities/memory/specialized.algorithms/uninitialized.fill.n/uninitialized_fill_n.pass.cpp
index d2b1dfa28868..ee4b04bd5224 100644
--- a/libcxx/test/std/utilities/memory/specialized.algorithms/uninitialized.fill.n/uninitialized_fill_n.pass.cpp
+++ b/libcxx/test/std/utilities/memory/specialized.algorithms/uninitialized.fill.n/uninitialized_fill_n.pass.cpp
@@ -19,13 +19,15 @@
 struct B
 {
     static int count_;
+    static int population_;
     int data_;
-    explicit B() : data_(1) {}
-    B(const B& b) {if (++count_ == 3) throw 1; data_ = b.data_;}
-    ~B() {data_ = 0;}
+    explicit B() : data_(1) { ++population_; }
+    B(const B& b) {if (++count_ == 3) throw 1; data_ = b.data_; ++population_; }
+    ~B() {data_ = 0; --population_; }
 };
 
 int B::count_ = 0;
+int B::population_ = 0;
 
 struct Nasty
 {
@@ -43,6 +45,7 @@ int main()
     const int N = 5;
     char pool[sizeof(B)*N] = {0};
     B* bp = (B*)pool;
+    assert(B::population_ == 0);
     try
     {
         std::uninitialized_fill_n(bp, 5, B());
@@ -50,14 +53,14 @@ int main()
     }
     catch (...)
     {
-        for (int i = 0; i < N; ++i)
-            assert(bp[i].data_ == 0);
+        assert(B::population_ == 0);
     }
     B::count_ = 0;
     B* r = std::uninitialized_fill_n(bp, 2, B());
     assert(r == bp + 2);
     for (int i = 0; i < 2; ++i)
         assert(bp[i].data_ == 1);
+    assert(B::population_ == 2);
     }
     {
     {
diff --git a/libcxx/test/std/utilities/memory/specialized.algorithms/uninitialized.fill/uninitialized_fill.pass.cpp b/libcxx/test/std/utilities/memory/specialized.algorithms/uninitialized.fill/uninitialized_fill.pass.cpp
index 47cabdfa478a..d24da4855ea0 100644
--- a/libcxx/test/std/utilities/memory/specialized.algorithms/uninitialized.fill/uninitialized_fill.pass.cpp
+++ b/libcxx/test/std/utilities/memory/specialized.algorithms/uninitialized.fill/uninitialized_fill.pass.cpp
@@ -20,13 +20,15 @@
 struct B
 {
     static int count_;
+    static int population_;
     int data_;
-    explicit B() : data_(1) {}
-    B(const B& b) {if (++count_ == 3) throw 1; data_ = b.data_;}
-    ~B() {data_ = 0;}
+    explicit B() : data_(1) { ++population_; }
+    B(const B& b) {if (++count_ == 3) throw 1; data_ = b.data_; ++population_; }
+    ~B() {data_ = 0; --population_; }
 };
 
 int B::count_ = 0;
+int B::population_ = 0;
 
 struct Nasty
 {
@@ -44,6 +46,7 @@ int main()
     const int N = 5;
     char pool[sizeof(B)*N] = {0};
     B* bp = (B*)pool;
+    assert(B::population_ == 0);
     try
     {
         std::uninitialized_fill(bp, bp+N, B());
@@ -51,13 +54,13 @@ int main()
     }
     catch (...)
     {
-        for (int i = 0; i < N; ++i)
-            assert(bp[i].data_ == 0);
+        assert(B::population_ == 0);
     }
     B::count_ = 0;
     std::uninitialized_fill(bp, bp+2, B());
     for (int i = 0; i < 2; ++i)
         assert(bp[i].data_ == 1);
+    assert(B::population_ == 2);
     }
     {
     const int N = 5;