scope question :

[NotYetaNurd]

for(int i=0;i<6;i++)
{
//
}

wont i go out of scope after the for loop ...?

[Hadi]

Yep.

"NotYetaNur d" <No*********@Ma trix.com> wrote in message
news:ec******** ******@TK2MSFTN GP10.phx.gbl...

for(int i=0;i<6;i++)
{
//
}

wont i go out of scope after the for loop ...?

[Champika Nirosh]

yes you go ... that is only from the things you have define within the scope
of the for loop

Nirosh.

"NotYetaNur d" <No*********@Ma trix.com> wrote in message
news:ec******** ******@TK2MSFTN GP10.phx.gbl...

for(int i=0;i<6;i++)
{
//
}

wont i go out of scope after the for loop ...?

[NotYetaNurd]

when i tried this
for(int i=0;i<6;i++)
{
for(int j=0;j<someConst ;j++)
{
}
}

int i=1;
foreach(....... )
{
asdf=--i;
}

I am getting the following error

"A local variable named 'i' cannot be declared in this scope because it
would give a different meaning to 'i', which is already used in a 'child'
scope to denote something else
"NotYetaNur d" <No*********@Ma trix.com> wrote in message
news:ec******** ******@TK2MSFTN GP10.phx.gbl...

for(int i=0;i<6;i++)
{
//
}

wont i go out of scope after the for loop ...?

[Champika Nirosh]

that is since

for (int i=0; i<6; i++) === int i; for(i=0; i<6; i+)

Nirosh.

"NotYetaNur d" <No*********@Ma trix.com> wrote in message
news:#1******** ******@TK2MSFTN GP10.phx.gbl...

when i tried this
for(int i=0;i<6;i++)
{
for(int j=0;j<someConst ;j++)
{
}
}

int i=1;
foreach(....... )
{
asdf=--i;
}

I am getting the following error

"A local variable named 'i' cannot be declared in this scope because it
would give a different meaning to 'i', which is already used in a 'child'
scope to denote something else
"NotYetaNur d" <No*********@Ma trix.com> wrote in message
news:ec******** ******@TK2MSFTN GP10.phx.gbl...

for(int i=0;i<6;i++)
{
//
}

wont i go out of scope after the for loop ...?

[NotYetaNurd]

in that case
following should work rite

for(int i=0;i<6;i++)
{

}
i = 1;
it gives the following error
The name 'i' does not exist in the class or namespace 'JTaskMgr.MainF orm'

"Champika Nirosh" <no****@textcen tric.lk> wrote in message
news:uK******** ******@TK2MSFTN GP10.phx.gbl...

that is since

for (int i=0; i<6; i++) === int i; for(i=0; i<6; i+)

Nirosh.

"NotYetaNur d" <No*********@Ma trix.com> wrote in message
news:#1******** ******@TK2MSFTN GP10.phx.gbl...

when i tried this
for(int i=0;i<6;i++)
{
for(int j=0;j<someConst ;j++)
{
}
}

int i=1;
foreach(....... )
{
asdf=--i;
}

I am getting the following error

"A local variable named 'i' cannot be declared in this scope because it
would give a different meaning to 'i', which is already used in a 'child' scope to denote something else
"NotYetaNur d" <No*********@Ma trix.com> wrote in message
news:ec******** ******@TK2MSFTN GP10.phx.gbl...

for(int i=0;i<6;i++)
{
//
}

wont i go out of scope after the for loop ...?

[Champika Nirosh]

Yes that won't work and let me explain it this way

Even if the scope of an element is limited to the block, its lifetime is
still that of the entire procedure. Therefore when you define the int i in
the procedure it give a different meaning to the variable i define in the
child scope.

but if you define your new i in a another block that will prevent you from
the reported error

Nirosh.

"NotYetaNur d" <No*********@Ma trix.com> wrote in message
news:#a******** ******@tk2msftn gp13.phx.gbl...

in that case
following should work rite

for(int i=0;i<6;i++)
{

}
i = 1;
it gives the following error
The name 'i' does not exist in the class or namespace 'JTaskMgr.MainF orm'

"Champika Nirosh" <no****@textcen tric.lk> wrote in message
news:uK******** ******@TK2MSFTN GP10.phx.gbl...

that is since

for (int i=0; i<6; i++) === int i; for(i=0; i<6; i+)

Nirosh.

"NotYetaNur d" <No*********@Ma trix.com> wrote in message
news:#1******** ******@TK2MSFTN GP10.phx.gbl...

when i tried this
for(int i=0;i<6;i++)
{
for(int j=0;j<someConst ;j++)
{
}
}

int i=1;
foreach(....... )
{
asdf=--i;
}

I am getting the following error

"A local variable named 'i' cannot be declared in this scope because it would give a different meaning to 'i', which is already used in a 'child' scope to denote something else
"NotYetaNur d" <No*********@Ma trix.com> wrote in message
news:ec******** ******@TK2MSFTN GP10.phx.gbl...
> for(int i=0;i<6;i++)
> {
> //
> }
>
> wont i go out of scope after the for loop ...?
>
>

[Jon Skeet [C# MVP]]

NotYetaNurd <No*********@Ma trix.com> wrote:

when i tried this
for(int i=0;i<6;i++)
{
for(int j=0;j<someConst ;j++)
{
}
}

int i=1;
foreach(....... )
{
asdf=--i;
}

I am getting the following error

"A local variable named 'i' cannot be declared in this scope because it
would give a different meaning to 'i', which is already used in a 'child'
scope to denote something else

Indeed. The problem is that the "int i=1;" declaration has a scope for
its entire block - including the for loop which occurs before it.
Effectively, you've got:

int i;

for (int i=0; i < 6; i++)
{
....
}

i=1;
foreach(....)
{
....
}

--
Jon Skeet - <sk***@pobox.co m>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too

[Jon Skeet [C# MVP]]

Champika Nirosh <no****@textcen tric.lk> wrote:

that is since

for (int i=0; i<6; i++) === int i; for(i=0; i<6; i+)

No it's not. See another reply for a fuller explanation.

--
Jon Skeet - <sk***@pobox.co m>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too

[Jon Skeet [C# MVP]]

Champika Nirosh <no****@textcen tric.lk> wrote:

Yes that won't work and let me explain it this way

Even if the scope of an element is limited to the block, its lifetime is
still that of the entire procedure.

No it's not. It's the lifetime of the *block*. This, for instance
compiles fine:

using System;

class Test
{
static void Main()
{
{
int i=5;
Console.WriteLi ne (i);
}

{
int i=10;
Console.WriteLi ne (i);
}

{
for (int i=0; i < 5; i++)
{
Console.WriteLi ne (i);
}
}
}
}

--
Jon Skeet - <sk***@pobox.co m>
http://www.pobox.com/~skeet
If replying to the group, please do not mail me too