params.c

Data Minig中的FP GROWTH 算法,附带test实例及实验数据分析

#include <stdarg.h>
#include <stdlib.h>
#include <assert.h>
#include "params.h"



int getints (char *s, char **end, int n, ...)
{                               
  va_list args;                 
  int     k = 0, t;             

  assert(s && end && (n > 0));  
  va_start(args, n);            
  while (k < n) {               
    t = (int)strtol(s, end,10); 
    if (*end == s) break;       
    *(va_arg(args, int*)) = t;  
    k++;                       
    s = *end; if (*s++ != ':') break;
  }                             
  va_end(args);                 
  return k;                     
}  

/*--------------------------------------------------------------------*/

int getdbls (char *s, char **end, int n, ...)
{                               
  va_list args;                 
  int     k = 0;                
  double  t;                    

  assert(s && end && (n > 0));  
  va_start(args, n);            
  while (k < n) {               
    t = strtod(s, end);         
    if (*end == s) break;       
    *(va_arg(args, double*)) = t;  
    k++;                           
    s = *end; if (*s++ != ':') break;
  }                             
  va_end(args);                 
  return k;                     
}  

/*--------------------------------------------------------------------*/

int getintvec (char *s, char **end, int n, int *p)
{                               
  int k = 0, t;                 

  assert(s && end && (n > 0));  
  while (k < n) {               
    t = (int)strtol(s, end,10); 
    if (*end == s) break;       
    p[k++] = t;                 
    s = *end; if (*s++ != ':') break;
  }                             
  return k;                     
} 

/*--------------------------------------------------------------------*/

int getdblvec (char *s, char **end, int n, double *p)
{                              
  int     k = 0;                
  double  t;                    

  assert(s && end && (n > 0));  
  while (k < n) {               
    t = strtod(s, end);         
    if (*end == s) break;       
    p[k++] = t;                 
    s = *end; if (*s++ != ':') break;
  }                             
  return k;                     
}