C99 stdint.h header and MS Visual Studio

Question

To my amazement I just discovered that the C99 stdint.h is missing from MS Visual Studio 2003 upwards. I'm sure they have their reasons, but does anyone know where I can download a copy? Without this header I have no definitions for useful types such as uint32_t, etc.

Answer 1

Turns out you can download a MS version of this header from:

https://github.com/mattn/gntp-send/blob/master/include/msinttypes/stdint.h

A portable one can be found here:

http://www.azillionmonkeys.com/qed/pstdint.h

Thanks to the Software Ramblings blog.

Answer 2

Another portable solution:

POSH: The Portable Open Source Harness

"POSH is a simple, portable, easy-to-use, easy-to-integrate, flexible, open source "harness" designed to make writing cross-platform libraries and applications significantly less tedious to create and port."

http://poshlib.hookatooka.com/poshlib/trac.cgi

as described and used in the book: Write portable code: an introduction to developing software for multiple platforms By Brian Hook http://books.google.ca/books?id=4VOKcEAPPO0C

-Jason

Answer 3

Just define them yourself.

#ifdef _MSC_VER

typedef __int32 int32_t;
typedef unsigned __int32 uint32_t;
typedef __int64 int64_t;
typedef unsigned __int64 uint64_t;

#else
#include <stdint.h>
#endif

Answer 4

Boost contains cstdint.hpp header file with the types you are looking for: http://www.boost.org/doc/libs/1_36_0/boost/cstdint.hpp

Answer 5

Microsoft do not support C99 and haven't announced any plans to. I believe they intend to track C++ standards but consider C as effectively obsolete except as a subset of C++.

New projects in Visual Studio 2003 and later have the "Compile as C++ Code (/TP)" option set by default, so any .c files will be compiled as C++.

Answer 6

Visual Studio 2003 - 2008 (Visual C++ 7.1 - 9) don't claim to be C99 compatible. (Thanks to rdentato for his comment.)