Subj : Re: Fixed-width data reading from FILE/streams
To   : borland.public.cpp.borlandcpp
From : "José Mauro Marinho" <jmtmarinho@bol.com.br>
Date : Sun Feb 08 2004 08:07 pm

Nice,

but not so simple, why int and float must be read also. For instance, here
is two typical lines:

0091 This is a test 4.56 1.03
0096 This also..            1035

Moreover, it shall recognize the implicit decimal point for float columns,
eg. 1035 => 1.035  (%4.3f ?)

Thank you,

"Bob Gonder" <notbg@notmindspring.invalid> escreveu na mensagem
news:op4d20l9012biplbc1so1iq945rrvc4ute@4ax.com...
> José Mauro T. Marinho wrote:
>
> >Can somebody tell me in a nutshell what is the best way to read
fixed-width
> >(column delimited) data from a text file. Incredibly, Fortran is very
best
> >C/C++ in this tedious task...
>
> First, open the text file in binary mode, not text.
> Define a structure that matches your data.
>
> typedef struct rec{
> char FirstPart[10];
> char SecondPart[27];
> char crlf[2];
> }MYRECORD;
>
> MYRECORD record;
>
> Use your choice of file functions to open the file in binary mode.
> Then use the matching read function to
> read( file, &record, sizeof(MYRECORD) )
>
> If your file has cr/lf delimiting the records, don't forget to include
> room in your structure for it.
>
>

.