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PDP-10 Archives
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SRI_NIC_PERM_FS_1_19910112
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kcc-6/include/assert.h
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/* <ASSERT.H> - Diagnostic macro facility.
**
** (c) Copyright Ken Harrenstien 1989
**
** Implements the assert() macro as described by the
** ANSI C draft, plus an alternative for use when ANSI-style preprocessing
** isn't in effect.
** Note stderr had better not be buffered!
*/
/* Because it's supposed to be possible to turn assertions on and off, we
** must permit re-inclusion of <assert.h> to do something different.
*/
#undef assert /* Flush any previous definition */
#ifdef NDEBUG
#define assert(ignore) ((void)0)
#else
#ifndef __STDC__ /* Canonicalize this to avoid errs if pre-ANSI */
#define __STDC__ 0
#endif
#if __STDC__ /* ANSI C version */
extern void _assert(char*, char*, int);
#define assert(e) ((e) ? (void)0 : _assert(#e, __FILE__, __LINE__))
#else /* Pre-ANSI version */
extern void _assert();
#define assert(e) ((e) ? (void)0 : _assert((char *)0, __FILE__, __LINE__))
#endif
#endif /* ifndef NDEBUG */