libf2c/libF77/d_atan.c

   1 #include "f2c.h"
   2
   3 #ifdef KR_headers
   4 double atan();
   5 double d_atan(x) doublereal *x;
   6 #else
   7 #undef abs
   8 #include <math.h>
   9 double d_atan(doublereal *x)
  10 #endif
  11 {
  12 return( atan(*x) );
  13 }