next »

[TechnicalTalk]

 TechnicalTalk » Programming and Web Development » C/C++
 Regarding compiler - Operator precedence

[power_junction]

power_junction  

 Regarding compiler - Operator precedence

Take an example of simple statement i.e.

Code:

int a=5,b=9,c=10,h=18,k;
k=h-a+c-b;
cout<<k;

as we know that +,- are at the same level in the precedence table.
Which operator should be preferred first and at last what will be the output of 'k'

[MikeLaw]

MikeLaw  

 Re: Regarding compiler - Operator precedence

Take an example of simple statement i.e.
int a=5,b=9,c=10,h=18,k;
k=h-a+c-b;
cout<<k;
as we know that +,- are at the same level in the precedence table.
Which operator should be preferred first and at last what will be the output of 'k'

Well the operators will be evaluated left to right so:
k=18-5 = 13 + 10 = 23 - 9 = 14
so 14 will be output.

[toby]

toby  

 Re: Regarding compiler - Operator precedence

The answer i come up with is 12 this is because to me, it always work out from left to right.

correct me if i am wrong, though, my programming skill has become rusty after i join the business course school "

[ManicQin]

ManicQin  

 Re: Regarding compiler - Operator precedence

The answer i come up with is 12 this is because to me, it always work out from left to right.

correct me if i am wrong, though, my programming skill has become rusty after i join the business course school "

... ... With all do respect it is your mathemtical skills that are rusty ...
Look at MikeLaw's answer...

or use a calculator ...

[Digitalhawk]

Digitalhawk  

 Re: Regarding compiler - Operator precedence

I see i have alot to learn

[jaincool]

jaincool  

 Re: Regarding compiler - Operator precedence

Buddy i think you need to brush up your maths skills...........
So here is a one more problem for you..........
a=10,b=20,x=5;
z=a+++++b--+--x
What will be the value of Z???