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Formatting with Filestream Pointers...

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Join Date: Aug 2005

Posts: 13

Reputation: Analogsleeper is an unknown quantity at this point

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Analogsleeper Analogsleeper is offline

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Formatting with Filestream Pointers...

Aug 23rd, 2005

I am having trouble setting the output format while using a pointer to a Filestream:

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 C Syntax (Toggle Plain Text) 
struct statLine{
int id;
int primary_type;
int secondary_type;
double period;
double epochnumber;
int savedextremenumber;
}statLine;
 
void printStatLine(ofstream *FSOptr)
{
        FSOptr->precision(7);
        *FSOptr << statLine.id << " " << statLine.primary_type << " " <<statLine.secondary_type << " ";
        *FSOptr << statLine.period << " ";
        *FSOptr << statLine.epochnumber << " " << statLine.savedextremenumber << endl;
}
struct statLine{
int id;
int primary_type;
int secondary_type;
double period;
double epochnumber;
int savedextremenumber;
}statLine;

void printStatLine(ofstream *FSOptr)
{
        FSOptr->precision(7);
        *FSOptr << statLine.id << " " << statLine.primary_type << " " <<statLine.secondary_type << " ";
        *FSOptr << statLine.period << " ";
        *FSOptr << statLine.epochnumber << " " << statLine.savedextremenumber << endl;
}

The printing works ok, but I can't seem to make the formatting (precision(7)) stick. Any suggestions?

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Join Date: Aug 2005

Posts: 14

Reputation: nattylife is an unknown quantity at this point

Solved Threads: 3

nattylife

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Re: Formatting with Filestream Pointers...

Aug 24th, 2005

do you mean setprecision()?
yer gonna need to insert it into the stream before your data likeso

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struct statLine{
int id;
int primary_type;
int secondary_type;
double period;
double epochnumber;
int savedextremenumber;
}statLine;

void printStatLine(ofstream *FSOptr)
{
        //FSOptr->precision(7);
        *FSOptr << statLine.id << " " << statLine.primary_type << " " <<statLine.secondary_type << " ";
        *FSOptr << setprecision(7) << statLine.period << " ";
        *FSOptr << setprecision(7)  << statLine.epochnumber << " " << statLine.savedextremenumber << endl;
}

dont forget to add <iomanip> up top