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I keep getting "error C2065: 'p' : undeclared identifier" (it's the same for
t, d, t1, etc...), while using the following programming.

#include <iostream.h>
#include <stdlib.h>
#include <math.h>
#include <iomanip.h>
#include <fstream.h>

int main()
{
fstream suture("SUTURE.dat", ios::in)
double temp;
double pressure;
double dwell;
suture >> batch >> temp >> pressure >> dwell;

double t;
double t1
if (temp<150, temp>170)
++t;
t1=(t*20);

double p;
double p1;
if (pressure<60, pressure>70)
++p;
p1=(p*20);

double d;
double d1;
if (dwell<2, dwell>2.5)
++d;
d1=(d*20);
}

I basically need to import the suture file and come up with rejection
percentages. As far as I can tell, I've identified everything with the
double floater. Any thoughts? TIA

John wrote:
> I keep getting "error C2065: 'p' : undeclared identifier" (it's the same for
> t, d, t1, etc...), while using the following programming.
>
> #include <iostream.h>
> #include <stdlib.h>
> #include <math.h>
> #include <iomanip.h>
> #include <fstream.h>
>
why use so many headers ? I do think you may need all of them. Also
use <iostream> instead of the deprecated <iostream.h> and so on..

> int main()
> {
> fstream suture("SUTURE.dat", ios::in)

No semicolon at the end of the statement..

> double temp;
> double pressure;
> double dwell;
> suture >> batch >> temp >> pressure >> dwell;

What is batch ??

>
> double t;
> double t1

No semicolon again..

> if (temp<150, temp>170)
> ++t;
> t1=(t*20);
>
> double p;
> double p1;
> if (pressure<60, pressure>70)
> ++p;
> p1=(p*20);
>
> double d;
> double d1;
> if (dwell<2, dwell>2.5)
> ++d;
> d1=(d*20);
> }
>
> I basically need to import the suture file and come up with rejection
> percentages. As far as I can tell, I've identified everything with the
> double floater. Any thoughts? TIA

Please post a correct copy of your code and let us know if you still
have the error(s).

>> if (temp<150, temp>170)
>> if (pressure<60, pressure>70)
>> if (dwell<2, dwell>2.5)

what is the comma (,) doing in the if loop?

gangs.

"John" <> wrote in message
news:hxkYf.57791$...
>I keep getting "error C2065: 'p' : undeclared identifier" (it's the same
>for
> t, d, t1, etc...), while using the following programming.
>
> #include <iostream.h>
> #include <stdlib.h>
> #include <math.h>
> #include <iomanip.h>
> #include <fstream.h>
>
> int main()
> {
> fstream suture("SUTURE.dat", ios::in)

need ; at end of line

> double temp;
> double pressure;
> double dwell;
> suture >> batch >> temp >> pressure >> dwell;
>
> double t;
> double t1
> if (temp<150, temp>170)
> ++t;

t was never initialized. Value here is just about anything.

> t1=(t*20);

since t is just about anything, t1 is just about anything times 20.

> double p;
> double p1;
> if (pressure<60, pressure>70)
> ++p;
> p1=(p*20);

Same here, p never initialized.

> double d;
> double d1;
> if (dwell<2, dwell>2.5)
> ++d;
> d1=(d*20);

Need I say it about d?

> }
>
> I basically need to import the suture file and come up with rejection
> percentages. As far as I can tell, I've identified everything with the
> double floater. Any thoughts? TIA
>
>

gangs wrote:
> >> if (temp<150, temp>170)
> >> if (pressure<60, pressure>70)
> >> if (dwell<2, dwell>2.5)
>
> what is the comma (,) doing in the if loop?
>
> gangs.

If is not a loop. Loop is something which repeats itself a specified
number of time. if is a conditional statement.