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+ TechnicalTalk » Programming and Web Development » C/C++ » Regarding compiler - Operator precedence
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Which operator should be prefered first if there position are same in the precedence table?<img src=" align="bottom" style="vertical-align:middle;" /> Poll - This thread contains a Poll. First mark your answer from the options and then reply with your justification.
Question: Which operator should be prefered first if there position are same in the precedence table?Huh?
+ - 3 (100%)
- - 0 (0%)
Total Voters: 3

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Regarding compiler - Operator precedence

 
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July 05, 2008, 01:53:27 AM
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'
« Last Edit: July 07, 2011, 10:04:44 AM by Admin »
 
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July 06, 2008, 09:42:56 AM
Quote from: power_junction on July 05, 2008, 01:53:27 AM
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.
 
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August 17, 2008, 01:47:53 AM
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 "Smiley
 
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August 17, 2008, 04:15:53 AM
Quote from: toby on August 17, 2008, 01:47:53 AM
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 "Smiley

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

or use a calculator ... shiny
 
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August 22, 2008, 02:12:06 PM
I see i have alot to learn
 
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September 10, 2008, 10:05:29 AM
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???
 shiny
 
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