ios_base (where is this file)

[Steven Taylor]

I'm learning C++ and am using a simple IDE to enter code.
My code is as follows.

#include <iostream>
#include <fstream>
#include <cstdlib>
void file_it(ostream &os, double fo, const double fe[],int n);

using namespace std;
int main()
{ //...simple code...// }

void file_it(ostream & os, double fo, const double fe[], int n)
{
ios_base::fmtflags initial; // <<<< compile error here
initial = os.setf(ios_base::fixed); // save initial formatting state
....
}
Using my preferred ide (C-free) I get a compile error "ios_base"
undeclared. When copying the exact code into Borland C++ BuilderX and
another simple ide 'Quincy' they compile perfectly. Any advice would
be appreciated (I know I can use my other compilers, but I would like to
know what is not happening).

Steven Taylor
Melbourne Australia.

 

[Sharad Kala]

I'm learning C++ and am using a simple IDE to enter code.
My code is as follows.

#include <iostream>
#include <fstream>
#include <cstdlib>
void file_it(ostream &os, double fo, const double fe[],int n);

using namespace std;
int main()
{ //...simple code...// }

void file_it(ostream & os, double fo, const double fe[], int n)
{
ios_base::fmtflags initial; // <<<< compile error here
initial = os.setf(ios_base::fixed); // save initial formatting state
....
}
Using my preferred ide (C-free) I get a compile error "ios_base"
undeclared. When copying the exact code into Borland C++ BuilderX and
another simple ide 'Quincy' they compile perfectly. Any advice would
be appreciated (I know I can use my other compilers, but I would like to
know what is not happening).

<ios> is the file you are looking for. It describes the base class of the
hierarchy and is usually automatically included by other header files of the
library that contain the derived classes.

Sharad