Doubt about open() function used inside a C++ function.

[cviniciusm]

Hello,

I'm using "g++ (GCC) 4.1.1 20070105 (Red Hat 4.1.1-51)".

I'm trying to use the open() function as defined by the header
fcntl.h, but I'm getting this error:
"
mylibrary.cpp:16: error: no matching function for call to
'mylibrary::open(const char*, int)'
mylibrary.cpp:14: note: candidates are: int mylibrary::open()
"

mylibrary.h:
class mylibrary
{
private:
int fd;
...
public:
int open(void);
...
};

mylibrary.cpp:
#include <fcntl.h>
#include "mylibrary.h"
int mylibrary::open(void)
{
fd = open("", O_RDWR | O_NOCTTY | O_NONBLOCK);
...
return 0;
}
How I tell the compiler to use the open() from fcntl.h, please?
TIA,
Vinicius.

[Tigera]

On Apr 29, 8:35 pm, [e-mail] wrote:

Hello,

I'm using "g++ (GCC) 4.1.1 20070105 (Red Hat 4.1.1-51)".

I'm trying to use the open() function as defined by the header
fcntl.h, but I'm getting this error:
"
mylibrary.cpp:16: error: no matching function for call to
'mylibrary::open(const char*, int)'
mylibrary.cpp:14: note: candidates are: int mylibrary::open()
"

mylibrary.h:
class mylibrary
{
private:
int fd;
...
public:
int open(void);
...

};

mylibrary.cpp:
#include <fcntl.h>
#include "mylibrary.h"
int mylibrary::open(void)
{
fd = open("", O_RDWR | O_NOCTTY | O_NONBLOCK);
...
return 0;

}

How I tell the compiler to use the open() from fcntl.h, please?

TIA,
Vinicius.

Perhaps try to get the compiler to search the namespace just outside
of that?
fd = ::open("", O_RDWR | O_NOCTTY | O_NONBLOCK);

[cviniciusm]

On 29 abr, 22:42, Tigera <[e-mail]:

On Apr 29, 8:35 pm, [e-mail] wrote:

Hello,

I'm using "g++ (GCC) 4.1.1 20070105 (Red Hat 4.1.1-51)".

I'm trying to use the open() function as defined by the header
fcntl.h, but I'm getting this error:
"
mylibrary.cpp:16: error: no matching function for call to
'mylibrary::open(const char*, int)'
mylibrary.cpp:14: note: candidates are: int mylibrary::open()
"

mylibrary.h:
class mylibrary
{
private:
int fd;
...
public:
int open(void);
...

};

mylibrary.cpp:
#include <fcntl.h>
#include "mylibrary.h"
int mylibrary::open(void)
{
fd = open("", O_RDWR | O_NOCTTY | O_NONBLOCK);
...
return 0;

}

How I tell the compiler to use the open() from fcntl.h, please?

TIA,
Vinicius.

Perhaps try to get the compiler to search the namespace just outside
of that?
fd = ::open("", O_RDWR | O_NOCTTY | O_NONBLOCK);

Yes, it worked.

Thanks a lot,
Vinicius.