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Joel Sherrill wrote: > > An RTEMS user recently noticed that the newlib definitions of NULL are not > proper. The proper definition is apparently "0" or "(void *)0". The > offending definitions are in: > > stdio.h:#define NULL 0L > stdlib.h:#define NULL 0L > string.h:#define NULL 0L > time.h:#define NULL 0L > > In newlib/libc/include. There may be others in machine and OS specific > files. Even more interestingly, the "one true" definition is in stddef.h. This is because if you have included this file from c++ sources, using g++, then you actually want the definition to be g++'s internal symbol __null. This is all wrapped up in stddef.h. So I think that in addition to changing these instances to (void *)0 (which is the most correct) anyway, we should also #define __need_NULL before including <stddef.h> so that we pick up the compiler's idea of NULL if possible. Jeff? Jonathan L. -- Cygnus Solutions, 35 Cambridge Place, Cambridge, UK. Tel: +44 (1223) 728762 "It is impossible to enjoy idling thoroughly unless||Home e-mail: jifl @ one has plenty of work to do - Jerome K. Jerome" || jifvik.demon.co.uk Help fight spam! http://spam.abuse.net/ These opinions are all my own fault