svn commit: r227475 - head/sys/sys

David Chisnall theraven at FreeBSD.org
Sat Nov 12 20:25:12 UTC 2011


Author: theraven
Date: Sat Nov 12 20:25:11 2011
New Revision: 227475
URL: http://svn.freebsd.org/changeset/base/227475

Log:
  Expose all of the C99 limits.h stuff when we're in C++11 mode (or some approximation thereof).  C++11 finally adds long long to C++.  Now even C++ programmers are allowed to use 64-bit integers!
  
  Approved by:	dim (mentor)

Modified:
  head/sys/sys/cdefs.h

Modified: head/sys/sys/cdefs.h
==============================================================================
--- head/sys/sys/cdefs.h	Sat Nov 12 20:16:06 2011	(r227474)
+++ head/sys/sys/cdefs.h	Sat Nov 12 20:25:11 2011	(r227475)
@@ -253,6 +253,17 @@
 #define	__LONG_LONG_SUPPORTED
 #endif
 
+/* C++11 exposes a load of C99 stuff */
+#if __cplusplus >= 201103L
+#	define	__LONG_LONG_SUPPORTED
+#	ifndef __STDC_LIMIT_MACROS
+#		define __STDC_LIMIT_MACROS
+#	endif
+#	ifndef __STDC_CONSTANT_MACROS
+#		define __STDC_CONSTANT_MACROS
+#	endif
+#endif
+
 /*
  * GCC 2.95 provides `__restrict' as an extension to C90 to support the
  * C99-specific `restrict' type qualifier.  We happen to use `__restrict' as


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