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C++ question is it being incremented ????

Elfman · 2006-04-27 18:00:26

I was look through a piece of c++ code and i came across this : in this code is num beiong inccremented orr will it just test the if ? also will num be incremented even if the if staement is not true ?? all help apriciated -Elfman

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27-04-2006 7:00pm

#1

Elfman

Registered Users Posts: 221 ✭✭

Join Date: February 2005

Posts: 114

I was look through a piece of c++ code and i came across this :

if(num++==10)

in this code is num beiong inccremented orr will it just test the if ? also will num be incremented even if the if staement is not true ??

all help apriciated

-Elfman

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#2 27-04-2006 9:20pm
bpmurray

Registered Users Posts: 1,275 ✭✭✭

Join Date: April 2002

Posts: 1213
Yes, it's incremented, but after the test. If it's parenthesised, it's probably easier to see:
if ((num++) == 10)

Remember that "var++" is incremented after everything, while "++var" is incremented before.

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#3 27-04-2006 9:22pm
bpmurray

Registered Users Posts: 1,275 ✭✭✭

Join Date: April 2002

Posts: 1213
Yes, it's incremented, but after the test. If it's parenthesised, it's probably easier to see:
if ((num++) == 10)

Remember that "var++" is incremented after everything, while "++var" is incremented before.

0