Build: require C11/C++11 for all operating systems in master.

This is in preparation of upgrading our library dependencies, some of which
need C++11. We already use C++11 in blender2.8 and for Windows and macOS, so
this just affects Linux.

On many distributions this will not require any changes, on some
install_deps.sh will need to be run again to rebuild libraries.

Differential Revision: https://developer.blender.org/D3568

9 files changed, 15 insertions, 139 deletions

diff --git a/intern/cycles/util/util_defines.h b/intern/cycles/util/util_defines.h
index d994d4e08f4..1a09f659eb1 100644
--- a/intern/cycles/util/util_defines.h
+++ b/intern/cycles/util/util_defines.h
@@ -87,18 +87,10 @@
 #  define UNLIKELY(x)     (x)
 #endif
 
-#if defined(__cplusplus) && ((__cplusplus >= 201103L) || (defined(_MSC_VER) && _MSC_VER >= 1800))
-#  define HAS_CPP11_FEATURES
-#endif
-
 #if defined(__GNUC__) || defined(__clang__)
-#  if defined(HAS_CPP11_FEATURES)
 /* Some magic to be sure we don't have reference in the type. */
 template<typename T> static inline T decltype_helper(T x) { return x; }
-#    define TYPEOF(x) decltype(decltype_helper(x))
-#  else
-#    define TYPEOF(x) typeof(x)
-#  endif
+#  define TYPEOF(x) decltype(decltype_helper(x))
 #endif
 
 /* Causes warning:
diff --git a/intern/cycles/util/util_foreach.h b/intern/cycles/util/util_foreach.h
index 03fcefc67b9..2a74ff0a55d 100644
--- a/intern/cycles/util/util_foreach.h
+++ b/intern/cycles/util/util_foreach.h
@@ -17,13 +17,8 @@
 #ifndef __UTIL_FOREACH_H__
 #define __UTIL_FOREACH_H__
 
-/* Use Boost to get nice foreach() loops for STL data structures. */
+/* Nice foreach() loops for STL data structures. */
 
-#if (__cplusplus > 199711L) || (defined(_MSC_VER) && _MSC_VER >= 1800)
-#  define foreach(x, y) for(x : y)
-#else
-#  include <boost/foreach.hpp>
-#  define foreach BOOST_FOREACH
-#endif
+#define foreach(x, y) for(x : y)
 
 #endif /* __UTIL_FOREACH_H__ */
diff --git a/intern/cycles/util/util_function.h b/intern/cycles/util/util_function.h
index 958f8b4008c..f3cc00329ad 100644
--- a/intern/cycles/util/util_function.h
+++ b/intern/cycles/util/util_function.h
@@ -17,18 +17,12 @@
 #ifndef __UTIL_FUNCTION_H__
 #define __UTIL_FUNCTION_H__
 
-#if (__cplusplus > 199711L) || (defined(_MSC_VER) && _MSC_VER >= 1800)
-#  include <functional>
-#else
-#  include <boost/bind.hpp>
-#  include <boost/function.hpp>
-#endif
+#include <functional>
 
 CCL_NAMESPACE_BEGIN
 
-#if (__cplusplus > 199711L) || (defined(_MSC_VER) && _MSC_VER >= 1800)
-#  define function_bind std::bind
-#  define function_null nullptr
+#define function_bind std::bind
+#define function_null nullptr
 using std::function;
 using std::placeholders::_1;
 using std::placeholders::_2;
@@ -39,11 +33,7 @@ using std::placeholders::_6;
 using std::placeholders::_7;
 using std::placeholders::_8;
 using std::placeholders::_9;
-#else
-using boost::function;
-#  define function_bind boost::bind
-#  define function_null NULL
-#endif
+
 CCL_NAMESPACE_END
 
 #endif /* __UTIL_FUNCTION_H__ */
diff --git a/intern/cycles/util/util_map.h b/intern/cycles/util/util_map.h
index b3d887f093c..3c9288417cf 100644
--- a/intern/cycles/util/util_map.h
+++ b/intern/cycles/util/util_map.h
@@ -18,38 +18,13 @@
 #define __UTIL_MAP_H__
 
 #include <map>
-
-#if defined(CYCLES_TR1_UNORDERED_MAP)
-#  include <tr1/unordered_map>
-#endif
-
-#if defined(CYCLES_STD_UNORDERED_MAP) || defined(CYCLES_STD_UNORDERED_MAP_IN_TR1_NAMESPACE)
-#  include <unordered_map>
-#endif
-
-#if !defined(CYCLES_NO_UNORDERED_MAP) && !defined(CYCLES_TR1_UNORDERED_MAP) && \
-	!defined(CYCLES_STD_UNORDERED_MAP) && !defined(CYCLES_STD_UNORDERED_MAP_IN_TR1_NAMESPACE)  // NOLINT
-#  error One of: CYCLES_NO_UNORDERED_MAP, CYCLES_TR1_UNORDERED_MAP,\
- CYCLES_STD_UNORDERED_MAP, CYCLES_STD_UNORDERED_MAP_IN_TR1_NAMESPACE must be defined!  // NOLINT
-#endif
-
+#include <unordered_map>
 
 CCL_NAMESPACE_BEGIN
 
 using std::map;
 using std::pair;
-
-#if defined(CYCLES_NO_UNORDERED_MAP)
-typedef std::map unordered_map;
-#endif
-
-#if defined(CYCLES_TR1_UNORDERED_MAP) || defined(CYCLES_STD_UNORDERED_MAP_IN_TR1_NAMESPACE)
-using std::tr1::unordered_map;
-#endif
-
-#if defined(CYCLES_STD_UNORDERED_MAP)
 using std::unordered_map;
-#endif
 
 CCL_NAMESPACE_END
 
diff --git a/intern/cycles/util/util_set.h b/intern/cycles/util/util_set.h
index 1d010e19996..298e1f7729a 100644
--- a/intern/cycles/util/util_set.h
+++ b/intern/cycles/util/util_set.h
@@ -18,24 +18,7 @@
 #define __UTIL_SET_H__
 
 #include <set>
-#if (__cplusplus > 199711L) || (defined(_MSC_VER) && _MSC_VER >= 1800)
-#  include <unordered_set>
-#else
-#  if defined(CYCLES_TR1_UNORDERED_MAP)
-#    include <tr1/unordered_set>
-#  endif
-#  if defined(CYCLES_STD_UNORDERED_MAP) || \
-      defined(CYCLES_STD_UNORDERED_MAP_IN_TR1_NAMESPACE)
-#    include <unordered_set>
-#  endif
-#  if !defined(CYCLES_NO_UNORDERED_MAP) && \
-      !defined(CYCLES_TR1_UNORDERED_MAP) && \
-      !defined(CYCLES_STD_UNORDERED_MAP) && \
-      !defined(CYCLES_STD_UNORDERED_MAP_IN_TR1_NAMESPACE)
-#    error One of: CYCLES_NO_UNORDERED_MAP, CYCLES_TR1_UNORDERED_MAP,\
- CYCLES_STD_UNORDERED_MAP, CYCLES_STD_UNORDERED_MAP_IN_TR1_NAMESPACE must be defined!  // NOLINT
-#  endif
-#endif
+#include <unordered_set>
 
 #if defined(_MSC_VER) && (_MSC_VER >= 1900)
 #  include <iterator>
@@ -44,19 +27,8 @@
 CCL_NAMESPACE_BEGIN
 
 using std::set;
-#if (__cplusplus > 199711L) || (defined(_MSC_VER) && _MSC_VER >= 1800)
-using std::unordered_set;
-#else
-#  if defined(CYCLES_NO_UNORDERED_MAP)
-typedef std::set unordered_set;
-#  endif
-#  if defined(CYCLES_TR1_UNORDERED_MAP) || defined(CYCLES_STD_UNORDERED_MAP_IN_TR1_NAMESPACE)
-using std::tr1::unordered_set;
-#  endif
-#  if defined(CYCLES_STD_UNORDERED_MAP)
 using std::unordered_set;
-#  endif
-#endif
+
 CCL_NAMESPACE_END
 
 #endif /* __UTIL_SET_H__ */
diff --git a/intern/cycles/util/util_static_assert.h b/intern/cycles/util/util_static_assert.h
index e90049254de..dc3cb3f6ecc 100644
--- a/intern/cycles/util/util_static_assert.h
+++ b/intern/cycles/util/util_static_assert.h
@@ -22,27 +22,7 @@ CCL_NAMESPACE_BEGIN
 /* TODO(sergey): In theory CUDA might work with own static assert
  * implementation since it's just pure C++.
  */
-#ifndef __KERNEL_GPU__
-#  if (__cplusplus > 199711L) || (defined(_MSC_VER) && _MSC_VER >= 1800)
-/* C++11 has built-in static_assert() */
-#  elif defined(static_assert)
-/* Some platforms might have static_assert() defined even tho their
- * C++ support wouldn't be declared to be C++11.
- */
-#  else  /* C++11 or MSVC2015 */
-template <bool Test> class StaticAssertFailure;
-template <> class StaticAssertFailure<true> {};
-#    define _static_assert_private_glue_impl(A, B) A ## B
-#    define _static_assert_glue(A, B) _static_assert_private_glue_impl(A, B)
-#    ifdef __COUNTER__
-#      define static_assert(condition, message) \
-  enum {_static_assert_glue(q_static_assert_result, __COUNTER__) = sizeof(StaticAssertFailure<!!(condition)>)}  // NOLINT
-#    else  /* __COUNTER__ */
-#      define static_assert(condition, message) \
-  enum {_static_assert_glue(q_static_assert_result, __LINE__) = sizeof(StaticAssertFailure<!!(condition)>)}  // NOLINT
-#    endif  /* __COUNTER__ */
-#  endif  /* C++11 or MSVC2015 */
-#else  /* __KERNEL_GPU__ */
+#ifdef __KERNEL_GPU__
 #  ifndef static_assert
 #    define static_assert(statement, message)
 #  endif
diff --git a/intern/cycles/util/util_thread.cpp b/intern/cycles/util/util_thread.cpp
index c66aa484264..16a8591a8a9 100644
--- a/intern/cycles/util/util_thread.cpp
+++ b/intern/cycles/util/util_thread.cpp
@@ -26,11 +26,7 @@ thread::thread(function<void(void)> run_cb, int group)
     joined_(false),
 	group_(group)
 {
-#if (__cplusplus > 199711L) || (defined(_MSC_VER) && _MSC_VER >= 1800)
 	thread_ = std::thread(&thread::run, this);
-#else
-	pthread_create(&pthread_id_, NULL, run, (void*)this);
-#endif
 }
 
 thread::~thread()
@@ -64,7 +60,6 @@ void *thread::run(void *arg)
 bool thread::join()
 {
 	joined_ = true;
-#if (__cplusplus > 199711L) || (defined(_MSC_VER) && _MSC_VER >= 1800)
 	try {
 		thread_.join();
 		return true;
@@ -72,9 +67,6 @@ bool thread::join()
 	catch (const std::system_error&) {
 		return false;
 	}
-#else
-	return pthread_join(pthread_id_, NULL) == 0;
-#endif
 }
 
 CCL_NAMESPACE_END
diff --git a/intern/cycles/util/util_thread.h b/intern/cycles/util/util_thread.h
index 77b51d37ea0..f39fcfb4279 100644
--- a/intern/cycles/util/util_thread.h
+++ b/intern/cycles/util/util_thread.h
@@ -17,15 +17,10 @@
 #ifndef __UTIL_THREAD_H__
 #define __UTIL_THREAD_H__
 
-#if (__cplusplus > 199711L) || (defined(_MSC_VER) && _MSC_VER >= 1800)
-#  include <thread>
-#  include <mutex>
-#  include <condition_variable>
-#  include <functional>
-#else
-#  include <boost/thread.hpp>
-#  include <pthread.h>
-#endif
+#include <thread>
+#include <mutex>
+#include <condition_variable>
+#include <functional>
 #include <queue>
 
 #ifdef _WIN32
@@ -42,16 +37,9 @@
 
 CCL_NAMESPACE_BEGIN
 
-#if (__cplusplus > 199711L) || (defined(_MSC_VER) && _MSC_VER >= 1800)
 typedef std::mutex thread_mutex;
 typedef std::unique_lock<std::mutex> thread_scoped_lock;
 typedef std::condition_variable thread_condition_variable;
-#else
-/* use boost for mutexes */
-typedef boost::mutex thread_mutex;
-typedef boost::mutex::scoped_lock thread_scoped_lock;
-typedef boost::condition_variable thread_condition_variable;
-#endif
 
 /* own pthread based implementation, to avoid boost version conflicts with
  * dynamically loaded blender plugins */
@@ -66,11 +54,7 @@ public:
 
 protected:
 	function<void(void)> run_cb_;
-#if (__cplusplus > 199711L) || (defined(_MSC_VER) && _MSC_VER >= 1800)
 	std::thread thread_;
-#else
-	pthread_t pthread_id_;
-#endif
 	bool joined_;
 	int group_;
 };
diff --git a/intern/cycles/util/util_vector.h b/intern/cycles/util/util_vector.h
index 569f503b66e..0b33221ad4d 100644
--- a/intern/cycles/util/util_vector.h
+++ b/intern/cycles/util/util_vector.h
@@ -59,11 +59,7 @@ public:
 
 	void shrink_to_fit(void)
 	{
-#if __cplusplus < 201103L
-		vector<value_type>().swap(*this);
-#else
 		std::vector<value_type, allocator_type>::shrink_to_fit();
-#endif
 	}
 
 	void free_memory(void)