Use <stdatomic.h> with GCC C Compiler

Use <stdatomic.h> with GCC C Compiler

[Sebastian Huber]

Hello,

the experimental part of the GCC C++ compiler provides the <atomic> and
<stdatomic.h> header files and implementation which may be part of a future C++
and C standard.  As far as I understand the <stdatomic.h> is provided for C
programs?  If I include <stdatomic.h> in a C source file and try to compile it
with the GCC C compiler I get this: fatal error: stdatomic.h: No such file or
directory.  Do I need some magic options to let the GCC C compiler find this
header file, e.g. -I /ugly/path/to/include/c++?

Have a nice day!

-- 
Sebastian Huber, embedded brains GmbH

Address : Obere Lagerstr. 30, D-82178 Puchheim, Germany
Phone   : +49 89 18 90 80 79-6
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E-Mail  : sebastian.huber@embedded-brains.de
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Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG.

Re: Use <stdatomic.h> with GCC C Compiler

[Jonathan Wakely]

On 26 January 2011 08:19, Sebastian Huber  wrote:
> Hello,
>
> the experimental part of the GCC C++ compiler provides the <atomic> and
> <stdatomic.h> header files and implementation which may be part of a future C++
> and C standard.  As far as I understand the <stdatomic.h> is provided for C
> programs?  If I include <stdatomic.h> in a C source file and try to compile it
> with the GCC C compiler I get this: fatal error: stdatomic.h: No such file or
> directory.  Do I need some magic options to let the GCC C compiler find this
> header file, e.g. -I /ugly/path/to/include/c++?

Yes, it's installed as part of libstdc++, which means it's only found
using the search paths of the C++ compiler.  To find it with the C
compiler you need to specify the path (or link to it or copy it
elsewhere)