convert a bool into long

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i try to a bool value 0 and 1 convert in long

like -0 and -1

C#

bool flag=false;

long iApplyTilde = (long) -(flag > false);

please help

thanks in advance

Posted 11-Aug-11 18:08pm

raj_raje

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Herman<T>.Instance 12-Aug-11 0:15am

false = -0 and true = -1?

4 solutions

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Roger Wright · Answer 1 · 2011-08-11T18:53:00

It appears that you're trying to assign a tilde to a character, based upon the value of flag. Why are you going to the trouble of converting to a long? Just test the value of flag in an if statement, and act accordingly. If you must,

long lflag = 0;
if (flag) lflag=1;
long iApplyTilde = lflag;

but I see no reason for all that extra work.

Herman<T>.Instance · Answer 2 · 2011-08-11T18:16:00

Solution 1

first: -0 does noet exist

bool flag = true;
long iApplyTilde = Convert.ToInt64(flag) *-1;
Console.WriteLine(iApplyTilde);
Console.ReadKey(true);

Posted 11-Aug-11 18:16pm

Herman<T>.Instance

Mohammad A Rahman · Answer 3 · 2011-08-12T02:35:00

Solution 3

It might be helpful,

C#

static void Main(string[] args)
{
    Console.WriteLine(GetLongValue(((DateTime.Now.Second % 2) == 0)));
}

private static Int64 GetLongValue(bool flag)
{
    return -Convert.ToInt64(flag);
}

Ref:
Signed_zero[^]
Floating-Point Rules [^]

:)

Posted 12-Aug-11 2:35am

Mohammad A Rahman

#realJSOP · Answer 4 · 2011-08-12T02:45:00

Solution 4

C#

bool flag = false;
long iApplyTidle = Convert.ToLong(flag);

The code above will result in iApplyTilde being = 0.

It ain't rocket surgery...

Posted 12-Aug-11 2:45am

#realJSOP