Re: [ROOT] Reading file

From: david.hou@utoronto.ca
Date: Wed Jun 25 2003 - 19:29:23 MEST 

i thought for ROOT int must be coded as Int_t, and same fore float, etc.? i may
be wrong in this aspect here

david



Quoting Livia FERRO <Livia.Ferro@cern.ch>:

> Hello,
> 
> I'm a Summer Student and I've a problem with root.
> I would like to read a data file like this:
> 
> 25 ext probe 1 21.93 1052989373314
> 26 ext probe 1 19.95 1052989373362
> 27 ext probe 1 20.25 1052989373418
> 28 ext probe 1 20.40 1052989373465
> 29 ext probe 1 20.36 1052989373517
> 30 ext probe 1 19.99 1052989373620
> 31 ext probe 1 21.17 1052989373683
> 
> In order to do this, I have written a script:
> 
> {
>   gROOT->Reset();
> 
>   int id;
>   char name1[10];
>   char name2[10];
>   int type;
>   float measure;
>   int timestamp;
>   char temp[200];
>   FILE *apre;
> 
>   apre = fopen("extprobe.dat","r");
> 
>   while(fgets(temp, sizeof(temp), apre) !=NULL) {
> 
>     sscanf(temp, "%d %s %s %d %g %d",
>     &id, &name1,&name2,  &type, &measure, &timestamp);
>     printf("%d %s %s %d %g %d\n",
>     id, name1,name2, type, measure, timestamp);
> 
>   }
> 
>     fclose(apre);
> }
> 
> 
> Alas, it doesn't work, because it can't manage to read the last number
> of each line (it's too long).
> Could you give any hint?
> 
> Thank you very much.
> 
> Livia Ferro
> 
>

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