first commit

#include<stdio.h>

#include<stdlib.h>

#include<netcdf.h>

#include<time.h>

void fill_time(double *vtime, int *year, int *month, int *day, int nl){

  struct tm begin = {0,0,0,0,0,0,0};

  begin.tm_isdst = -1;

  time_t t_of_day;

  for (int i=0; i < nl; ++i){

    begin.tm_year  = year[i]-1900;

    begin.tm_mon   = month[i] -1;                                                                                                                                                                          

    begin.tm_mday  = day[i];                                                                                                                                                                    

    begin.tm_hour  = 0;

    begin.tm_min   = 0;

    begin.tm_sec   = 0;

    begin.tm_isdst = -1;

    t_of_day       = mktime(&begin);

    vtime[i]       = (double)(t_of_day);

  }

}  

void fill_time_days(double *vtime, int nl){

  for(int i=0; i <nl;++i){

    vtime[i]       = (double)(i);

  }

}  

int main(int argc, char *argv[]){

  FILE *fin = NULL;

  if (argc != 3){

    printf("Usage %s filenamein filenameout\n",argv[0]);

    return 1;

  }

  fin = fopen(argv[1],"r");

  if (fin  == NULL ) return 1;

  int c = 0;

  int nl = 0;

  while ((c = fgetc(fin)) != EOF ){

      if ( c== '\n') nl++; 

    }

  printf("number of line is %d \n",nl);

  rewind(fin);

  int *year   = (int *)malloc(nl*sizeof(int));

  int  *month = (int *)malloc(nl*sizeof(int));

  int   *day  = (int *)malloc(nl*sizeof(int));

  float *avg1 = (float *)malloc(nl*sizeof(float));

  float *avg2 = (float *)malloc(nl*sizeof(float));

  float *avg3 = (float *)malloc(nl*sizeof(float));

  int   *id   = (int *)malloc(nl*sizeof(int));

  double   *vtime   = (double *)malloc(nl*sizeof(double));

  int index = 0;

  while ((fscanf(fin,"%d%d%d%f%f%f%d",&year[index],&month[index],&day[index],&avg1[index],&avg2[index],&avg3[index],&id[index])) && !feof(fin)){

    index++;

  }

  char *filename = argv[2];

  int ncid;

  int rec_dimid;

  int av1id, av2id, av3id, idid;

  int time_varid;

  nc_create(filename, NC_CLOBBER, &ncid);

  nc_def_dim(ncid, "time",nl,&rec_dimid);

  nc_def_var(ncid, "avg1", NC_FLOAT,1,&rec_dimid, &av1id);

  nc_def_var(ncid, "avg2", NC_FLOAT,1,&rec_dimid, &av2id);

  nc_def_var(ncid, "avg3",NC_FLOAT,1,&rec_dimid, &av3id);

  nc_def_var(ncid, "id",  NC_INT,1,&rec_dimid,&idid);

  nc_def_var(ncid, "time",NC_DOUBLE,1,&rec_dimid, &time_varid);

  char calendar[]        = "gregorian";

  char units[]           = "days since 1756-01-01 00:00:00";

  char standard_name[]   = "time" ;

  char long_name[]       = "Time axis" ;

  char time_origin[]     = "1756-01-01 00:00:00" ;

  nc_put_att_text (ncid,time_varid, "calender",sizeof(calendar) / sizeof(calendar[0]), calendar);

  nc_put_att_text (ncid,time_varid, "units",sizeof(units) / sizeof(units[0]), units);

  nc_put_att_text (ncid,time_varid, "time_origin",sizeof(time_origin) / sizeof(time_origin[0]), time_origin);

  nc_put_att_text (ncid,time_varid, "standard_name",sizeof(standard_name) / sizeof(standard_name[0]), standard_name);

  nc_put_att_text (ncid,time_varid, "time_origin",sizeof(time_origin) / sizeof(time_origin[0]), time_origin);

  nc_put_att_text (ncid,time_varid, "long_name",sizeof(long_name) / sizeof(long_name[0]), long_name);

  nc_enddef(ncid);

  fill_time_days(vtime,nl);

  nc_put_var_double(ncid,time_varid,&vtime[0]);

  nc_put_var_int(ncid,idid,&id[0]);

  nc_put_var_float(ncid,av1id,&avg1[0]);

  nc_put_var_float(ncid,av2id,&avg2[0]);

  nc_put_var_float(ncid,av3id,&avg3[0]);

  nc_close(ncid);

  free(year);

  free(month);

  free(day);

  free(avg1);

  free(avg2);

  free(avg3);

  free(id);

  free(vtime);

  fclose(fin);

  return 0;

}