• Lewis <dethbomb hotmail.com> Jan 14 2004
• J Anderson <REMOVEanderson badmama.com.au> Jan 14 2004
• Lewis <dethbomb hotmail.com> Jan 14 2004

Lewis <dethbomb hotmail.com> writes:

in vb anything that isnt 0 evaluates to true, is this the same in d?

//example

char[] foo;
foo.length = 1;

if (foo.length) {

}

//or

uint x;
x = -1;
if (x) {  }

//or
while (x) { }


thanks

J Anderson <REMOVEanderson badmama.com.au> writes:

Lewis wrote:

 in vb anything that isnt 0 evaluates to true, is this the same in d?

 //example

 char[] foo;
 foo.length = 1;

 if (foo.length) {

 }

 //or

 uint x;
 x = -1;
 if (x) {  }

 //or
 while (x) { }


 thanks


Yes, it's the same in C and C++ as well.  One difference is that the 
literal true = 1 in these languages. In VB the literal true = -1;  It's 
particularly useful for pointers, which are null (0) if they don't have 
anything in them.

int* p;

if (p)
{
    //There's something in p
}

Lewis <dethbomb hotmail.com> writes:

J Anderson wrote:
 Lewis wrote:
 
 in vb anything that isnt 0 evaluates to true, is this the same in d?

 //example

 char[] foo;
 foo.length = 1;

 if (foo.length) {

 }

 //or

 uint x;
 x = -1;
 if (x) {  }

 //or
 while (x) { }


 thanks


 
 Yes, it's the same in C and C++ as well.  One difference is that the 
 literal true = 1 in these languages. In VB the literal true = -1;  It's 
 particularly useful for pointers, which are null (0) if they don't have 
 anything in them.
 
 int* p;
 
 if (p)
 {
    //There's something in p
 }
 


neato! thanks Mr. Anderson