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sics/d_sign.c

19 lines
290 B
C

#include "f2c.h"
#ifdef __cplusplus
extern "C" {
#endif
#ifdef KR_headers
double d_sign(a, b) doublereal *a, *b;
#else
double d_sign(doublereal * a, doublereal * b)
#endif
{
double x;
x = (*a >= 0 ? *a : -*a);
return (*b >= 0 ? x : -x);
}
#ifdef __cplusplus
}
#endif