is(3itcl) [incr Tcl] is(3itcl)NAME
is - test argument to see if it is a class or an object
SYNOPSIS
itcl::is option ?arg arg ...?
DESCRIPTION
The is command is used to check if the argument given is a class or an object; depending on the option given. If the argument if a class or
object, then 1 is returned. Otherwise, 0 is returned. The is command also recognizes the commands wrapped in the itcl code command.
The option argument determines what action is carried out by the command. The legal options (which may be abbreviated) are:
is class command
Returns 1 if command is a class, and returns 0 otherwise.
The fully qualified name of the class needs to be given as the command argument. So, if a class resides in a namespace, then the
namespace needs to be specified as well. So, if a class C resides in a namespace N, then the command should be called like: is N::C
or is ::N::C
is object ?-class className? command
Returns 1 if command is an object, and returns 0 otherwise.
If the optional "-class" parameter is specified, then the command will be checked within the context of the class given. Note that
className has to exist. If not, then an error will be given. So, if className is uncertain to be a class, then the programmer will
need to check it's existance beforehand, or wrap it in a catch statement.
So, if c is an object in the class C, in namespace N then these are the possibilities (all return 1): set obj [N::C c] itcl::is
object N::c itcl::is object c itcl::is object $obj itcl::is object [itcl::code c]
KEYWORDS
class, object
itcl 3.3 is(3itcl)
Check Out this Related Man Page
is(n) [incr Tcl] is(n)
__________________________________________________________________________________________________________________________________________________NAME
is - test argument to see if it is a class or an object
SYNOPSIS
itcl::is option ?arg arg ...?
_________________________________________________________________DESCRIPTION
The is command is used to check if the argument given is a class or an object; depending on the option given. If the argument if a class or
object, then 1 is returned. Otherwise, 0 is returned. The is command also recognizes the commands wrapped in the itcl code command.
The option argument determines what action is carried out by the command. The legal options (which may be abbreviated) are:
is class command
Returns 1 if command is a class, and returns 0 otherwise.
The fully qualified name of the class needs to be given as the command argument. So, if a class resides in a namespace, then the
namespace needs to be specified as well. So, if a class C resides in a namespace N, then the command should be called like:
is N::C
or
is ::N::C
is object ?-class className? command
Returns 1 if command is an object, and returns 0 otherwise.
If the optional "-class" parameter is specified, then the command will be checked within the context of the class given. Note that
className has to exist. If not, then an error will be given. So, if className is uncertain to be a class, then the programmer will
need to check it's existance beforehand, or wrap it in a catch statement.
So, if c is an object in the class C, in namespace N then these are the possibilities (all return 1):
set obj [N::C c]
itcl::is object N::c
itcl::is object c
itcl::is object $obj
itcl::is object [itcl::code c]
KEYWORDS
class, object
itcl 3.3 is(n)
What is the command line syntax for the if exist command in Unix like in DOS/WIN which test for the existance of a file?
Is the syntax the same in a script?
Thanx (3 Replies)
i just started learning to prog in c++, im using netbeans.
i tryed to make a class and i keep getting this error. what am i doing wrong ?
-----------------------------
class test
{
public:
int funtime();
private:
int time;
};
int test::funtime()... (4 Replies)
Hi, i have a question about C++. Is it possible to declare a class with a member ot the same class? For example, a linked list or i want to convert this C code to C++ class (Elemento)
typedef struct elemento
{
char name;
char value;
List<struct elemento> ltElementos;
... (7 Replies)
I am trying to execute the following command to check the existance of a file (which has a date timestamp on it). If there are more than one file, then also it should give me 'success' result.
if
then
<do some work>
else
<no files>
fi
Since there are more than one... (18 Replies)
Hello everyone,
I have this code which prints the address of the object of a class....bt. what if I want to print the address of the class?
#include <iostream.h>
class har{
};
int main()
{
har a;
cout<<(&a);
}
I would really appreciate if someone can help!
Thanks!!!!! (1 Reply)
How to initialize an object of class say "A", with an object of type say "B".
The following code give the error message "error: conversion from âAâ to non-scalar type âBâ requested"
#include <iostream>
using namespace std;
class B;
class A{
public:
A() { cout <<"\nA()" << endl; }
... (1 Reply)