20int f_atan(
int argc,
const int *argt,
void **args)
23 DCELL *arg1 = args[1];
32 if (argt[0] != DCELL_TYPE)
35 if (argt[1] != DCELL_TYPE)
38 if (argc > 1 && argt[2] != DCELL_TYPE)
41 arg2 = (argc > 1) ? args[2] :
NULL;
44 if (IS_NULL_D(&arg1[i]))
46 else if (argc > 1 && IS_NULL_D(&arg2[i]))