Andrew Pardoe

Spectre diagnostic in Visual Studio 2017 Version 15.7 Preview 4

April 20th, 2018

Visual Studio 2017 version 15.7 Preview 4 adds a new capability to our Spectre mitigation: the ability to see where the compiler would have inserted a mitigation and what data led to that action. A new warning, C5045, lets you see what patterns in your code would have caused a mitigation, such as an LFENCE, to be inserted. This change builds

Spectre mitigation changes in Visual Studio 2017 Version 15.7 Preview 3

April 9th, 2018

With Visual Studio 2017 version 15.7 Preview 3 we have two new features to announce with regards to our Spectre mitigations. First, the /Qspectre switch is now supported regardless of the selected optimization level. Second, we have provided Spectre-mitigated implementations of the Microsoft Visual C++ libraries. Complete details are availabl

C++ code analysis: configure rules from the command line

April 9th, 2018

This post written by Sunny Chatterjee and Andrew Pardoe Visual Studio version 15.7 Preview 3 introduces a new MSVC compiler switch, /analyze:ruleset, that configures code analysis runs. The primary motivation for this switch is to enable developers who are using C++ Code Analysis without using MSBuild to filter rules. But developers who are u

MSVC now correctly reports __cplusplus

April 9th, 2018

The MSVC compiler’s definition of the __cplusplus predefined macro leaps ahead 20 years in Visual Studio 2017 version 15.7 Preview 3. This macro has stubbornly remained at the value "199711L", indicating (erroneously!) that the compiler conformed to the C++98 Standard. Now that our conformance catch-up work is drawing to a close we’re upda

C++ Core Check in Visual Studio 2017 15.6 Preview 2

January 18th, 2018

点这里看中文版 This post was written by Sergiy Oryekhov. Note that some of the links to docs.microsoft.com do not yet resolve. Not all of the official documentation has yet been written for this topic. Visual Studio 2017 15.6 Preview 2 includes a set of updates to the C++ Core Guidelines Check extension. We added more checks to help

Spectre mitigations in MSVC

January 15th, 2018

Update 20 April 2018 With Visual Studio 2017 version 15.7 Preview 4 we have added a new warning, C5045, that shows what patterns in your code would have caused a mitigation to be inserted. See this post for more details. Update 4 April 2018 With Visual Studio 2017 version 15.7 Preview 3 we have two new features to announce with regards to o

MSVC conformance improvements in Visual Studio 2017 version 15.5

November 15th, 2017

The MSVC toolset included in Visual Studio version 15.5 preview 4 includes many C++ conformance improvements. Throughout the VS2015 and VS2017 releases we've focused on conformance with C++ standards, including C++17 features. With VS2017 version 15.5, MSVC has implemented about 75% of C++17 core language and library features. These features c

C++ Core Check improvements in Visual Studio 2017 15.5

November 15th, 2017

点这里看中文版 This post was written by Sergiy Oryekhov. In Visual Studio 2017 version 15.5 Preview 4 we have refreshed our C++ Core Guidelines Check extension for native code static analysis tools. Most of the work since 15.3 has been focused on new rules that will help developers starting new projects write safer C++ and those with

Side-by-side minor version MSVC toolsets in Visual Studio 2017

November 15th, 2017

We've been delivering improvements to Visual Studio 2017 more frequently than ever before. Since its first release in March we've released four major updates to VS2017 and are currently previewing the fifth update, VS2017 version 15.5. The MSVC toolset in VS2017 is built as a minor version update to the VS2015 compiler toolset. This minor ver

Visual Studio Build Tools now include the VS2017 and VS2015 MSVC Toolsets

November 2nd, 2017

点这里看中文版 The Visual C++ Build tools have been a huge success since we introduced them two years ago. The C++ Build Tools were originally released as a standalone installer that only laid down the tools required to build C++ projects without installing the Visual Studio IDE. Many developers have found them useful in environments t