/*
 *  call-seq:
 *     dvector.safe_log10(cutoff=1e-99)   ->  a_dvector
 *  
 *  Returns a copy of _dvector_ with each entry x replaced by log10(max(x,_cutoff_)).
 *     
 */ 
VALUE dvector_safe_log10(int argc, VALUE *argv, VALUE self) {