Does Microsoft visual studio 2010 support c99?

Question

I would like to know if Microsoft Visual Studio 2010 supports C99. If not, how can I use the standard types like intptr_t and uintptr_t?

possible duplicate of [Visual Studio support for new C / C++ standards?](http://stackoverflow.com/questions/146381/visual-studio-support-for-new-c-c-standards) — Mitch Wheat, Jul 14 '11 at 05:44
http://herbsutter.com/2012/05/03/reader-qa-what-about-vc-and-c99/ pretty much says everything there is to say on the subject. — Stephen Canon, Jan 23 '13 at 11:48
Looks like we're going to have [C99 library support in Visual Studio **2013**](http://blogs.msdn.com/b/vcblog/archive/2013/07/19/c99-library-support-in-visual-studio-2013.aspx)! — Lumi, Jul 26 '13 at 13:02

score 12 · Answer 1 · answered Jul 14 '11 at 05:45

Visual Studio 2010 does not support C99 syntax. stdint.h is a very common file in all C/C++ compilers, though, which does exist in a Visual C++ 10.0 installation, included with the Windows SDK (regardless of the version of Visual Studio that you use).

stdint.h can be found in:

C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\

This file does provide a typedef for intptr_t. Feel free to use it in any C or C++ project you like.

score 8 · Accepted Answer · edited May 23 '17 at 12:17

8

As far as I can tell, Visual Studio 2010 does not support C99. To use types from stdint.h, you will have to use a typedef. A cross-platform way to do this would be:

#ifdef _WIN32
typedef signed short int16_t
#else
#include <stdint.h>
#endif

See also this this question: Visual Studio support for new C / C++ standards?

edited May 23 '17 at 12:17

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answered Jul 14 '11 at 05:44

David Grayson

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What about the printing factor I use? In C99 **zd** works fine for both **32 bit and 64 bit** environment. – thetna Jul 14 '11 at 05:49
Sorry, what is a "printing factor" and what is a "zd"? – David Grayson Jul 14 '11 at 06:55
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**%zd** print factor for **intptr_t** as **%d** for **int** – thetna Jul 14 '11 at 08:42
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Just make sure to pick the real type, rather than the "signed short" placeholder in the example. – Jon Hess Jun 04 '12 at 19:38
@thetna That's not called a "printing factor", it's called a "conversion specifier". – Jun 30 '13 at 08:13
It doesn't implement all of C99, but MSVC 2010 *does* have intptr_t: http://msdn.microsoft.com/en-us/library/323b6b3k%28v=vs.100%29.aspx – rdb Oct 21 '14 at 17:22

score 2 · Answer 3 · answered Jul 14 '11 at 05:55

Microsoft C does not support C99. However, MSVC 16 (what's provided with Visual Studio 2010) implements a good portion of the upcoming C++0x standard. C++0x is incorporating some of the headers from C99, such as stdint.h and inttypes.h - that's why you get some tidbits of C99 with MSVC 16.

Be thankful for small things (I wish MSVC supported a bit more of C99 when compiling straight C files).

Does Microsoft visual studio 2010 support c99?

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