[svn-r15208] Description:

	Add a "HDcompile_assert" macro for assertions that can/should be checked
at compile time, as opposed to run time.  (And used it for a couple of simple
cases, to begin)

Tested on:
        FreeBSD/32 6.2 (duty) in debug mode
        FreeBSD/64 6.2 (liberty) w/C++ & FORTRAN, in debug mode
        Linux/32 2.6 (kagiso) w/PGI compilers, w/C++ & FORTRAN, w/threadsafe,
                                in debug mode
        Linux/64-amd64 2.6 (smirom) w/default API=1.6.x, w/C++ & FORTRAN,
                                in production mode
        Linux/64-ia64 2.6 (cobalt) w/Intel compilers, w/C++ & FORTRAN,
                                in production mode
        Solaris/32 2.10 (linew) w/deprecated symbols disabled, w/C++ & FORTRAN,
                                w/szip filter, in production mode
        Mac OS X/32 10.5.3 (amazon) in debug mode
        Linux/64-ia64 2.4 (tg-login3) w/parallel, w/FORTRAN, in production mode

1 files changed, 3 insertions, 0 deletions

diff --git a/src/H5private.h b/src/H5private.h
index 97c53fb..6686f88 100644
--- a/src/H5private.h
+++ b/src/H5private.h
@@ -1881,6 +1881,9 @@ static herr_t		H5_INTERFACE_INIT_FUNC(void);
 #define H5_GLUE(x,y)       x##y
 #define H5_GLUE3(x,y,z)    x##y##z
 
+/* Compile-time "assert" macro */
+#define HDcompile_assert(e)     do { enum { compile_assert__ = 1 / (e) }; } while(0)
+
 /* Private functions, not part of the publicly documented API */
 H5_DLL herr_t H5_init_library(void);
 H5_DLL void H5_term_library(void);