Apologies for a slightly off-topic (Autoconf-related) question. I believe OpenMPI deals with Fortran implementations where integer types contain internal padding (i.e., not all bits are used for the value); at least I read the configure macros this way.
Is padding in C types a practical issue as well? Say, a 'short' with a maximum value of 32767 but 32 or 64 bits storage size? The only system we found that exhibits this was a Cray Y-MP from the cray-cyber museum (it's accessible and usable), but we don't know of more modern systems that do this. Background: there is discussion[1] over a macro to compute such ranges, fit also for cross compilation, but we're unsure about its practical value. I figured the readers here may have more such experience. Cheers, and apologies again, Ralf [1] http://thread.gmane.org/gmane.comp.sysutils.autoconf.patches/2745/focus=3117
