microsoft C considered stupid
Rick Genter
rgenter at BBN-LABS-B.ARPA
Tue Jun 24 00:11:12 AEST 1986
Actually, the defined() preprocessor function does provide a convenience
over #ifdef in one specific case:
#if defined(VAX730) || defined (VAX750) || defined (VAX780)
< code which is included when any of the three symbols
are defined >
#endif /* defined ... */
This is a royal pain to accomplish with #ifdef:
#undef KLUDGE
#ifdef VAX730
#define KLUDGE
#endif /* def VAX730 */
#ifdef VAX750
#define KLUDGE
#endif /* def VAX750 */
#ifdef VAX780
#define KLUDGE
#endif /* def VAX780 */
#ifdef KLUDGE
< code which is included when any of the three symbols
are defined >
#endif /* def KLUDGE */
Alternatively, you have to include the code three times.
- Rick
--------
Rick Genter BBN Laboratories Inc.
(617) 497-3848 10 Moulton St. 6/506
rgenter at labs-b.bbn.COM (Internet new) Cambridge, MA 02238
rgenter at bbn-labs-b.ARPA (Internet old) linus!rgenter%BBN-LABS-B.ARPA (UUCP)
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