libf2c/libF77/d_nint.c

   1 #include "f2c.h"
   2
   3 #ifdef KR_headers
   4 double floor();
   5 double d_nint(x) doublereal *x;
   6 #else
   7 #undef abs
   8 #include <math.h>
   9 double d_nint(doublereal *x)
  10 #endif
  11 {
  12 return( (*x)>=0 ?
  13         floor(*x + .5) : -floor(.5 - *x) );
  14 }