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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; }