Using the tenary operator in C with 3 numbers

[Kernelpanic]

The tenary operator was discussed here for some time ago, a bit complicated in Basic. It is quite useful for simple comparisons.

The program uses the tenary operator in C with a triple comparison. It also works with four numbers, but that gets a bit confusing. If one only want to compare two numbers, simply enter 0 for the third number. -- Both files in the same directory.

Code: (Select All)

'Aufruf des tenaeren Operators in C - 8. Aug. 2024



Option _Explicit



Declare Library "D:\Lab\QuickBasic64\Extern-nicht-Basic\Basic-ruft-C\btenaerDreifach"

  Function btenaerDreifach& (ByVal Zahl1 As Long, Byval Zahl2 As Long, Byval Zahl3 As Long)

End Declare



Dim As Long zahl1, zahl2, zahl3



Locate 3, 3

Print "Dreifachen tenaeren Operator in C aufrufen"

Locate 4, 3

Print "=========================================="



Locate 6, 3

Input "Zahl 1: ", zahl1



Locate 7, 3

Input "Zahl 2: ", zahl2



Locate 8, 3

Input "Zahl 3: ", zahl3



Locate 10, 3

Print Using "Die groesste Zahl ist: ####"; btenaerDreifach&(zahl1&, zahl2&, zahl3&)



End

Save the C program as btenaerDreifach.h

Code: (Select All)

//Dreifachen tenaeren Operator von Basic aufrufen - 7. Aug. 2024



#include <stdio.h>

#include <stdlib.h>



long btenaerDreifach(long zahl1, long zahl2, long zahl3)

{

long max; 



max = (zahl1 > zahl2 ? ((zahl1 > zahl3) ? zahl1 : zahl3) : zahl2);



return(max); 

}

[Pete]

For those of you who missed out watching reruns of Hogan's Heroes, the tenary operator is basically saying...

if a then b otherwise c 

Which looks to me like the BASIC equivalent of our if/then/else statements.

But then again, I could be channeling Sergent Schultz, in which case, "I know nothing, nothing!"

Pete

[Jack]

Pete
the difference is that you can assign the ternary expression to a variable, you can basically do the same with if then else, but sometimes you can simplify things by using the ternary expression, but I confess that the ternary operator looks weird unless you use it a lot

[Pete]

I look at it as shorthand...

C=(A>B)?A:B; 

meaning:

If A > B Then C = A Else C = B

Pete

[Kernelpanic]

I kook at it as shorthand...

C=(A>B)?A:B; 

meaning:

If A > B Then C = A Else C = B

Pete

I do not think so!

Code: (Select All)

a = 5

b = 4

c = 7



If a > b Then

  c = a

Else

  c = b

End If



Print c

There c would have to be the largest number, right? 

[Pete]

You can't assign c.

Pete

[SMcNeill]

You can't assign c.

Pete

Must be under this new, modern grading system.  A, B, D, E, F  ??

[Pete]

This one was fun...

Code: (Select All)

Age = 30

Beverage = Age >= 21 ? "Beer" : "Juice";

Results: Beer

So you don't assign beverage, it is determined by the assigned value of age.

Pete

[hsiangch_ong]

https://en.wikipedia.org/wiki/Ternary

spell it right.

(not being a jerk. but i thought the word started with "ter" which got me to look it up.)

https://en.wikipedia.org/wiki/Ternary_co...l_operator

[Pete]

https://en.wikipedia.org/wiki/Ternary
spell it right.
(not being a jerk. but i thought the word started with "ter" which got me to look it up.)
https://en.wikipedia.org/wiki/Ternary_co...l_operator

I think the Kernel was using the 8th instance of the function as in...

I'm tenary the eighth I am
Tenary the 8th I am I am
I got called from the mainframe next door
It's been booted seven times before
And every call was a tenary, it couldn't call a driver or a cam
I'm the eighth old function tenary
Tenary the eighth I am

Pete