1. 4/13/ :02 AM
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2. reasons to move your C++ code to Visual Studio
4/13/ :02 AM
B8105 7
reasons to move your C++ code to Visual Studio
2017
Marian Luparu
@mluparu
@visualc
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

3. 7 2017 One IDE to: #1 write modern, portable C++
4/13/ :02 AM
One IDE to:
#1 write modern, portable C++
#2 upgrade to, pain-free
#3 run faster
#4 make you more productive
#5 bring your non-MSVC sources to (via Open Folder)
#6 target multiple platforms
#7 streamline your installation
reasons you will love
Visual Studio 7
2017
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

4. Visual Studio 2017 Community Professional Enterprise
Microsoft Build 2017
4/13/ :02 AM
Visual Studio Community Professional Enterprise RC
16 Nov 2016
Release
7 Mar 2017
2017.1
5 Apr 2017
2017.2
Available Now
2017.3
Preview 1 Available Now
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

5. 7 #1 modern, portable C++ 2017 Visual Studio
4/13/ :02 AM
#1 modern, portable C++
reasons to move your C++ code to
Visual Studio 7
2017
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

6. C++ Conformance C++17 … … C++11 C++14 C++TS
Updated or Completed in VS2015 wave
Updated or Completed in VS2015 wave
C++ Conformance
Updated or Completed in VS2017 RTM
Updated or Completed in VS2017 RTM
Coming soon in VS Update
C++11
Two-phase Name Lookup under /permissive- (partial support)
default/deleted func, Inline namespaces, User-defined literals, noexcept, char16_t/char32_t, alignas/alignof, __func__, Extended sizeof, Inheriting constructors, Unicode string literals, Magic statics, thread_local, Unrestricted unions, Attributes, Universal char names in literals, Data-dep ordering attributes, constexpr
Expression SFINAE (via Boost)
STL: All C++11 Features
C++14
Expression SFINAE (via more libraries)
auto, decltype(auto) return types, Generic lambdas, Generalized lambda captures, Binary literals, Sized Deallocators, Deprecated attribute, Digit separator, Variable Templates
NSDMI for Aggregates
Extended Constexpr
STL: All C++14 Features
Auto with braced-init list, u8 char literal, Attributes on namespace and enum, Removing trigraphs, typename in template template-param, Nested Namespace, Ignoring unrecognized attributes
Terse static_assert
Attribute [[fallthrough]]
C++17
Generalized range-based for-loops
STL:<any>
STL:<optional>
STL:<string_view>
STL:<variant>
STL:<algorithm> sample()
STL:<tuple> apply()
Structured Bindings
Selection statements with initializers
Construction rules for enum class values
Guaranteed copy elision
__has_include
Register keyword
Capturing *this by value
Using attribute namespaces without repetition
Constexpr lambdas
C++TS
[[maybe_unused]]
[[nodiscard]]
Removing operator++ for bool
if constexpr
STL:<string_view> UDLs
Filesystem (experim.) …
C++ Coroutines
C++ Modules (experimental)
C++ Concepts (experimental) …

7. std::optional<T>
Microsoft Build 2017
4/13/ :02 AM
std::optional<T>
bool reduce(Item it,
/*in, opt*/ Item* subitem,
/*out*/ CachedItem* ret) {
CachedItem* retVal;
if (download(it, retVal)) {
if (subitem != nullptr) {
CachedItem* subItemRet;
if (download(*subitem, subItemRet)) {
retVal->addSubitem(*subItemRet); }
else return false;
return true;
return false;
Item i(...), j(...);
CachedItem* ret = nullptr;
if (reduce(i, &j, ret)) {
cout << ret->name << endl;
After
optional<CachedItem> reduce(Item it,
optional<Item> subitem) {
CachedItem* retVal;
if (download(it, retVal)) {
if (subitem) {
CachedItem* subItemRet;
if (download(*subitem, subItemRet)) {
retVal->addSubitem(*subItemRet); }
else return nullopt;
return *retVal;
return nullopt;
Item i(...), j(...);
auto ret = reduce(i, j);
if (ret) {
cout << ret->name << endl;
Before
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8. std::optional<T>
Microsoft Build 2017
4/13/ :02 AM
std::optional<T>
Before
bool reduce(Item it,
/*in, opt*/ Item* subitem,
/*out*/ CachedItem* ret) {
CachedItem* retVal;
if (download(it, retVal)) {
if (subitem != nullptr) {
CachedItem* subItemRet;
if (download(*subitem, subItemRet)) {
retVal->addSubitem(*subItemRet); }
else return false;
return true;
return false;
Item i(...), j(...);
CachedItem* ret = nullptr;
if (reduce(i, &j, ret)) {
cout << ret->name << endl;
After
optional<CachedItem> reduce(Item it,
optional<Item> subitem = nullopt) {
CachedItem* retVal;
if (download(it, retVal)) {
if (subitem) {
CachedItem* subItemRet;
if (download(*subitem, subItemRet)) {
retVal->addSubitem(*subItemRet); }
else return nullopt;
return *retVal;
return nullopt;
Item i(...), j(...);
auto ret = reduce(i, j);
if (ret) {
cout << ret->name << endl;
auto ret2 = reduce(i);
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

9. C++ Conformance C++17 … … C++11 C++14 C++TS
Updated or Completed in VS2015 wave
Updated or Completed in VS2015 wave
C++ Conformance
Updated or Completed in VS2017 RTM
Updated or Completed in VS2017 RTM
Coming soon in VS Update
C++11
Two-phase Name Lookup under /permissive- (partial support)
default/deleted func, Inline namespaces, User-defined literals, noexcept, char16_t/char32_t, alignas/alignof, __func__, Extended sizeof, Inheriting constructors, Unicode string literals, Magic statics, thread_local, Unrestricted unions, Attributes, Universal char names in literals, Data-dep ordering attributes, constexpr
Expression SFINAE (via Boost)
STL: All C++11 Features
C++14
Expression SFINAE (via more libraries)
auto, decltype(auto) return types, Generic lambdas, Generalized lambda captures, Binary literals, Sized Deallocators, Deprecated attribute, Digit separator, Variable Templates
NSDMI for Aggregates
Extended Constexpr
STL: All C++14 Features
Auto with braced-init list, u8 char literal, Attributes on namespace and enum, Removing trigraphs, typename in template template-param, Nested Namespace, Ignoring unrecognized attributes
Terse static_assert
Attribute [[fallthrough]]
C++17
Generalized range-based for-loops
STL:<any>
STL:<optional>
STL:<string_view>
STL:<variant>
STL:<algorithm> sample()
STL:<tuple> apply()
Structured Bindings
Selection statements with initializers
Construction rules for enum class values
Guaranteed copy elision
__has_include
Register keyword
Capturing *this by value
Using attribute namespaces without repetition
Constexpr lambdas
C++TS
[[maybe_unused]]
[[nodiscard]]
Removing operator++ for bool
if constexpr
STL:<string_view> UDLs
Filesystem (experim.) …
C++ Coroutines
C++ Modules (experimental)
C++ Concepts (experimental) …

10. Need help adopting the C++ Core Guidelines?
Microsoft Build 2017
4/13/ :02 AM
Need help adopting the C++ Core Guidelines?
C++ Core Checkers
(part of C++ Code Analysis)
Bounds checks
Type checks
Const checks
Resource management checks
Guidelines Support Library
span<T>
not_null<T>
owner<T>, and more
Install GSL from:
Source code:
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11. 7 #2 pain-free upgrades 2017 Visual Studio
4/13/ :02 AM
#2 pain-free upgrades
reasons to move your C++ code to
Visual Studio 7
2017
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

12. Pain-free upgrade Microsoft Build 2016 4/13/2018 10:02 AM
© 2016 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

13. Pain-Free Upgrade
You can get the VS2015 toolset with VS2017 (without needing the VS2015 IDE)
Binary compatibility between the VS2015 and VS2017 runtimes
Vcpkg: Open source tool based on a port tree approach
vcpkg install boost
And 220+ libraries more
Installs the .h, .lib and binaries in a “lib folder” including dependencies
works with VS2017
2015 binaries are compatible with 2017 (no need to rebuild)

14. Developer Inner Loop Read & Edit Diagnose Commit Compile Test
Microsoft Build 2016
4/13/ :02 AM
Developer Inner Loop
Read & Edit
Create and update your code
Diagnose
Fix and optimize your code
Commit
Share your code
Compile
Build your code
Test
Validate your code
© 2016 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

15. 7 #3 performance 2017 Visual Studio reasons to move your C++ code to
4/13/ :02 AM
#3 performance
reasons to move your C++ code to
Visual Studio 7
2017
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

16. Performance
Auto-precompiled headers for IntelliSense perf (when no PCH)
Memory usage during debugging significantly decreased
E.g. debugging a specific problematic project down to 1.9G from… crashing
Faster builds
/debug:fastlink on by default, 30% link time improvements
Solution load dramatic improvements
Chromium
Solution Items
VS 2015 Update 3
VS 2017
Improvement
Time - First Solution Open (s)
1,213
182
6.6x
Time – Subsequent Solution Open (s)
1,211 68
17.8x
Private Working Set (MB)
2,293
804
2.8x
Virtual Memory (MB)
3,066
1,302
2.3x
aka.ms/vcperf

17. 7 #4 productivity 2017 Visual Studio reasons to move your C++ code to
4/13/ :02 AM
#4 productivity
reasons to move your C++ code to
Visual Studio 7
2017
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

18. Demo Microsoft Build 2017 4/13/2018 10:02 AM
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

19. Unit Testing Announcing support for new frameworks!
Microsoft Build 2017
4/13/ :02 AM
Compile
Test
Diagnose
Read & Edit
Commit
Unit Testing
Announcing support for new frameworks!
Supported Frameworks:
MSTest
Google Test (available now in Marketplace!)
Built with GTest Adapter extension (by Christian Soltenborn and Jonas Gefele)
Boost.Test (coming soon!)
Manage tests from Test Explorer
Check code coverage right in the IDE
Create test projects or unit testing files easily
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

20. C++ Productivity Read & Edit
Microsoft Build 2017
4/13/ :02 AM
Compile
Test
Diagnose
Read & Edit
Commit
C++ Productivity
Read & Edit
New filters + Predictive IntelliSense mode
Go To (ctrl + ,) with various filters
Find All References improvements
Code formatting enforcement
(via. .editorconfig)
Compile
/debug:fastlink 30% improvements
OSS libs from
Test
New Unit Test Frameworks
Google Test (available now)
Boost.Test (coming soon)
Diagnose
Improved:
Error List results
Memory and CPU profiler
Debugging
Run to Click
Reattach to process
Exception helper
Break-on-exception conditions
Compiler diagnostics via /diagnostics:caret
Commit
Force push your changes
SSH support for remotes
View Commit Diff
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21. 7 #5 open folder 2017 Visual Studio reasons to move your C++ code to
4/13/ :02 AM
#5 open folder
reasons to move your C++ code to
Visual Studio 7
2017
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

22. Open Folder: CMake, etc Ideal for non-MSBuild projects
Microsoft Build 2017
4/13/ :02 AM
Open Folder: CMake, etc
Ideal for non-MSBuild projects
e.g. any project using CMake, make or other C++ build systems
Easy to get started
devenv.exe <directory> or “File > Open > Folder…” (Ctrl+Alt+Shift+O)
Read & edit
All C++ navigation and IntelliSense features
Build & Debug
Flexible integration of external build processes
Familiar Visual Studio debugging experience
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

23. Demo Microsoft Build 2017 4/13/2018 10:02 AM
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

24. #6 cross-platform development
4/13/ :02 AM
#6 cross-platform development
reasons to move your C++ code to
Visual Studio 7
2017
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

25. Android C++ Development
Microsoft Build 2017
4/13/ :02 AM
Android C++ Development
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

26. iOS C++ Development Microsoft Build 2017 4/13/2018 10:02 AM
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27. Microsoft Build 2017
4/13/ :02 AM
Linux C++ Development
C/C++ Linux Development workload now part of VS installer
Target any Linux distro with SSH, gdbserver and compiler.
Use the full power of the Visual Studio debugger as you would expect with your C/C++ Linux development
Debug live using attach to process to your Linux machine
IntelliSense & Code browsing
out of the box for GCC and stdlibc++
easily extended by importing your own headers.
Bring your existing build processes with the makefile project support
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

28. Demo Microsoft Build 2017 4/13/2018 10:02 AM
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

29. 7 2017 One IDE to: #1 write modern, portable C++
4/13/ :02 AM
One IDE to:
#1 write modern, portable C++
#2 upgrade to, pain-free
#3 run faster
#4 make you more productive
#5 bring your non-MSVC sources to (via Open Folder)
#6 target multiple platforms
reasons you will love
Visual Studio 7
2017
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

30. #7 streamlined installation
reasons to move your C++ code to
Visual Studio 7
2017
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

31. Desktop development with C++ Universal Windows Platform development
Microsoft Build 2016
4/13/ :02 AM
Desktop development with C++
Universal Windows Platform development
Mobile development with C++
Game development with C++
Linux development with C++
aka.ms/vcinstaller
© 2016 Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

32. 7 #7++ you helped build it 2017 Visual Studio
4/13/ :02 AM
#7++ you helped build it
reasons to move your C++ code to
Visual Studio 7
2017
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

33. You helped us build it! Visual Studio User Voice
“Report a problem” tool

34. 987 You helped us build it! 1546 Visual Studio User Voice
“Report a problem” tool
1546
Votes
on UserVoice
987
fixed bugs publicly reported through Connect & IDE

35. 7 2017 #1 modern, portable C++ #2 pain-free upgrades #3 performance
4/13/ :02 AM
#1 modern, portable C++
#2 pain-free upgrades
#3 performance
#4 productivity
#5 open folder
#6 cross-platform development
#7 streamlined installation
#7++ you helped build it
reasons you will love
Visual Studio 7
2017
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

36. Take our C++ survey https://aka.ms/cppbuild2017survey
Microsoft Build 2017
4/13/ :02 AM
Take our C++ survey
Stop by our Expo booth to
Talk with the C++ team,
Get a “Visual C++” t-shirt (while supplies last)
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37. Related sesions B8083 – The Future of Visual Studio (Amanda Silver)
Microsoft Build 2017
4/13/ :02 AM
Related sesions
B8083 – The Future of Visual Studio (Amanda Silver)
T Linux C++ development with Visual Studio 2017 (Marc Goodner)
P From pre-compiled headers to incremental whole program optimization: saving mankind through improving the compile time of native code (Eric Brumer)
Quick Start - Create a basic Universal Windows Platform (UWP) app in C++
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38. 4/13/ :02 AM
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

39. Two-phase name lookup namespace doc {
Microsoft Build 2017
4/13/ :02 AM
Two-phase name lookup
namespace doc {
template<typename> auto tcp_connect() {
parameters:
awaitable => "stores the awaitable state",
req(output) => "the object to write the request",
socket => "the TCP socket used to connect",
dest => "the address to connect to"
return:
"future<int> that you should co_await"
promise:
"0 on success; <= 0 on failure" }
auto& tcp_connect(
awaitable_state<int>& awaitable,
uv_connect_t* req,
uv_tcp_t* socket,
const struct sockaddr* dest) {
promise_t<int> awaitable;
auto state = awaitable._state->lock();
req->data = state;
auto ret = ::uv_tcp_connect(req, socket, dest, [](uv_connect_t* req, int status) -> void {
...
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.