convert int values to bool

[puzzlecracker]

Is it possible, in a clean way, to convert int values too bool
int i=10;

bool b=(bool)i;
instead of doing b=(i>0);

[Israel]

On Oct 7, 12:27*pm, puzzlecracker <[e-mail]:

Is it possible, in a clean way, to convert int values too bool
int i=10;

bool b=(bool)i;

instead of doing b=(i>0);

I'd argue the statement should be:
bool b = (i != 0)

but this will work too:
bool b = Convert.ToBoolean(i);

[puzzlecracker]

bool b = Convert.ToBoolean(i);

Thanks, that's what I was looking for!

[=?ISO-8859-1?Q?G=F6ran_Andersson?=]

puzzlecracker wrote:

>bool b = Convert.ToBoolean(i);

Thanks, that's what I was looking for!

And guess how it's implemented?

public static bool ToBoolean(int value) {
return (value != 0);
}

:)

--
Göran Andersson
_____
http://www.guffa.com

[puzzlecracker]

On Oct 7, 5:39 pm, Göran Andersson <[e-mail]:

puzzlecracker wrote:

bool b = Convert.ToBoolean(i);

Thanks, that's what I was looking for!

And guess how it's implemented?

public static bool ToBoolean(int value) {
return (value != 0);

}

:)

--

Göran Andersson

_____http://www.guffa.com

Sweet, what about the reverse?

[=?ISO-8859-1?Q?Arne_Vajh=F8j?=]

puzzlecracker wrote:

On Oct 7, 5:39 pm, Göran Andersson <[e-mail]:

>puzzlecracker wrote:

>>>bool b = Convert.ToBoolean(i);
Thanks, that's what I was looking for!

And guess how it's implemented?

public static bool ToBoolean(int value) {
return (value != 0);

}

Sweet, what about the reverse?

You mean:

public static int ToInt32(bool value)
{
if (!value)
{
return 0;
}
return 1;
}

?

I don't know why it is not using the ?: operator.

Arne

[Ben Voigt [C++ MVP]]

You mean:

>
public static int ToInt32(bool value)
{
if (!value)
{
return 0;
}
return 1;
}

?

I don't know why it is not using the ?: operator.

Did you look at the source code or use a decompiler? The MSIL doesn't
provide any distinction that a decompiler could use between an if/else vs
tertiary operator.

>
Arne

[Duggi]

On Oct 9, 11:06*am, "Ben Voigt [C++ MVP]" <[e-mail]:

You mean:

public static int ToInt32(bool value)
{
* * if (!value)
* * {
* * * * return 0;
* * }
* * return 1;
}

?

I don't know why it is not using the ?: operator.

Did you look at the source code or use a decompiler? *The MSIL doesn't
provide any distinction that a decompiler could use between an if/else vs
tertiary operator.

Arne- Hide quoted text -

- Show quoted text -

right.

it basically converts to one and the same

-Cnu

[=?ISO-8859-1?Q?Arne_Vajh=F8j?=]

Ben Voigt [C++ MVP] wrote:

>You mean:

public static int ToInt32(bool value)
{
if (!value)
{
return 0;
}
return 1;
}

?

I don't know why it is not using the ?: operator.

Did you look at the source code or use a decompiler? The MSIL doesn't
provide any distinction that a decompiler could use between an if/else vs
tertiary operator.

Reflector.

So it could actually have been a ?: operator ?

Well - easy to test.

public static class ToBeOrNotToBe
{
public static int Foo(bool v)
{
return v ? 1 : 0;
}
public static int Bar(bool v)
{
if(v)
{
return 1;
}
else
{
return 0;
}
}
}

csc and reflector:

public static class ToBeOrNotToBe
{
// Methods
public static int Bar(bool v)
{
if (v)
{
return 1;
}
return 0;
}

public static int Foo(bool v)
{
return (v ? 1 : 0);
}
}

csc /o+ and reflector:

public static class ToBeOrNotToBe
{
// Methods
public static int Bar(bool v)
{
if (v)
{
return 1;
}
return 0;
}

public static int Foo(bool v)
{
if (!v)
{
return 0;
}
return 1;
}
}

Yes - it looks as if the ?: has been used after all.

Arne