Verify that you have access to this location and try aqain, or try to find the installation package vc runtimelinimum x86.msi' in a folder from which you can install the product Microsoft Visual C 2015 x86 Minimum Runtime14.0.24215. 4 people found this reply helpful. The goal of the Microsoft Visual C 2015-2019 Redistributable Package is to download all of the runtimes in one package. As you can tell by the name, the package includes all of the runtimes from 2015-2019 and should be backward compatible with all apps and games created with Microsoft Visual C. We said it should.
-->Enable supported C and C++ language features from the specified version of the C or C++ language standard.
Syntax
/std:c++14/std:c++17/std:c++latest/std:c11/std:c17
Remarks
The /std options are available in Visual Studio 2017 and later. They're used to control the version-specific ISO C or C++ programming language standard features enabled during compilation of your code. The options allow you to disable support for certain new language and library features: ones that may break your existing code that conforms to a particular version of the language standard.
C++ standards support
The /std option in effect during a C++ compilation can be detected by use of the _MSVC_LANG preprocessor macro. For more information, see Preprocessor Macros.
/std:c++14
Enables C++14 standard-specific features implemented by the MSVC compiler. This option is the default for code compiled as C++. Available starting with Visual Studio 2015 Update 3. Enables C++14 standard-specific features implemented by the MSVC compiler.
This option disables compiler and standard library support for features that are changed or new in more recent versions of the language standard. It doesn't disable some C++17 features already implemented in previous releases of the MSVC compiler. For more information, see Microsoft C/C++ language conformance. It indicates which C++14 and C++17 features are enabled when you specify /std:c++14.
The following features remain enabled when the /std:c++14 option is specified to avoid breaking changes for users who have already taken dependencies on the features available in or before Visual Studio 2015 Update 2:
/std:c++17
Enable C++17 standard-specific features and behavior. Enables the full set of C++17 features implemented by the MSVC compiler. This option disables compiler and standard library support for features that are new or changed after C++17. That includes post-C++17 changes in versions of the Working Draft and defect updates of the C++ Standard. Available starting in Visual Studio version 15.3
Depending on the MSVC compiler version or update level, C++17 features may not be fully implemented or fully conforming when you specify the /std:c++17 options. For an overview of C++ language conformance in Visual C++ by release version, see Microsoft C/C++ language conformance.
/std:c++latest
Enable all currently implemented compiler and standard library features proposed for the next draft standard. Available starting with Visual Studio 2015 Update 3
Enables the post-C++17 language and library features currently implemented in the compiler and libraries. These features may include changes to the latest Working Draft standard, defect updates, and experimental proposals for the standard.
For a list of supported language and library features, see What's New for Visual C++.
This option doesn't enable features guarded by the /experimental switch, but may be required to enable them.
Note
The compiler and library features enabled by /std:c++latest may appear in a future C++ standard, as well as approved C++20 features. Features that have not been approved are subject to breaking changes or removal without notice and are provided on an as-is basis.
C standards support
By default, when code is compiled as C, the MSVC compiler doesn't conform to a particular C standard. It implements ANSI C89 with several Microsoft extensions, some of which are part of ISO C99. Some Microsoft extensions can be disabled by using the /Za compiler option, but others remain in effect. It isn't possible to specify strict C89 conformance.
/std:c11
Enable ISO C11 conformance. Available starting in Visual Studio 2019 version 16.8.
/std:c17
Enable ISO C17 conformance. Available starting in Visual Studio 2019 version 16.8.
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Because the new preprocessor is needed to support these standards, the /std:c11 and /std:c17 compiler options set the /Zc:preprocessor option automatically. If you want to use the traditional (legacy) preprocessor for C11 or C17, you must set the /Zc:preprocessor- compiler option explicitly. Setting the /Zc:preprocessor- option may lead to unexpected behavior, and isn't recommended.
Note
At the time of release, the Windows SDK and UCRT libraries installed by Visual Studio don't support C11 and C17 code ywt. An updated version of the Windows SDK and UCRT is required. For more information and installation instructions, see Install C11 and C17 support in Visual Studio.
When you specify /std:c11 or /std:c17, MSVC supports all the features of C11 and C17 required by the standard. (Certain optional features aren't supported.) The compiler options enable support for these functionalities:
restrict_Noreturnand <stdnoreturn.h>_Alignas,_Alignofand <stdalign.h>_Genericand <tgmath.h>_Static_assert
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The IDE uses C settings for IntelliSense and code highlighting when your source files have a .c file extension, or when you specify the /TC compiler option. Currently, IntelliSense highlighting is only available for keywords, and not the macros introduced by the standard headers.
Since C17 is largely a bug fix release of ISO C11, MSVC support for C11 already includes all the relevant defect reports. There are no differences between the C11 and C17 versions except for the __STDC_VERSION__ macro. It expands to 201112L for C11, and 201710L for C17.
The compiler doesn't support most optional features of ISO C11. Several of these optional features of C11 were required features of C99 that MSVC hasn't implemented for architectural reasons. You can use the feature test macros such as __STDC_NO_VLA__ to detect compiler support levels for individual features. For more information about C-specific predefined macros, see Predefined macros.
There's no conforming multithreading, atomic, or complex number support in the Visual Studio 2019 version 16.8 release.
aligned_allocsupport is missing, because of the Windows heap implementation. The alternative is to use_aligned_malloc.DR 400 support is currently unimplemented for
realloc, because this change would break the ABI.Variable length array (VLA) support isn't planned. VLAs provide attack vectors comparable to
gets(), which is deprecated and planned for removal.
For more information, see the C Standard library features section of Microsoft C/C++ language conformance.
To set this compiler option in the Visual Studio development environment
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Open the project's Property Pages dialog box. For more information, see Set C++ compiler and build properties in Visual Studio.
Select the Configuration Properties > C/C++ > Language property page.
In C++ Language Standard (or for C, C Language Standard), choose the language standard to support from the dropdown control, then choose OK or Apply to save your changes.
See also
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MSVC compiler options
MSVC compiler command-line syntax