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							- #include "arith.h"
 
- #ifndef Long
 
- #define Long long
 
- #endif
 
-  int
 
- #ifdef KR_headers
 
- signbit_f2c(x) double *x;
 
- #else
 
- signbit_f2c(double *x)
 
- #endif
 
- {
 
- #ifdef IEEE_MC68k
 
- 	if (*(Long*)x & 0x80000000)
 
- 		return 1;
 
- #else
 
- #ifdef IEEE_8087
 
- 	if (((Long*)x)[1] & 0x80000000)
 
- 		return 1;
 
- #endif /*IEEE_8087*/
 
- #endif /*IEEE_MC68k*/
 
- 	return 0;
 
- 	}
 
 
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