Parentheses around return values
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Chris Hargrove in part 9 of his ''Corn On The Cob'' series says thet he puts parentheses around all the return values,to prevent compiler optimization bugs.
Is this really necessary?I am using MS VC++6.0 and am interested in knowing whether the parantheses make any difference.
Hi man;
Parantehes here and there .....
You generally not use optimise when u debug programs it slows down the compilling.
In VC++ havent heard about such problems in this compilator, but nothing is bug free.
Parantehes here and there .....
You generally not use optimise when u debug programs it slows down the compilling.
In VC++ havent heard about such problems in this compilator, but nothing is bug free.
quote:Original post by Tanuj
Chris Hargrove in part 9 of his ''Corn On The Cob'' series says thet he puts parentheses around all the return values,to prevent compiler optimization bugs.
There is no difference between these two return statements:
return (expr); return expr; HOWEVER , it is conceivable that a compiler could mess that up, so it''s certainly possible that could be the case. But if that''s so, it''s a messed-up compiler and should be smacked into submission.
---- --- -- -
Blue programmer needs food badly. Blue programmer is about to die!
You will be shocked at the number of bugs in VC. There are quite a few. Most of the common ones are fixed by the service packs.
I am not slagging it off though, I use it myself. I think most of the newer compiler have loads of bugs.
Leave of those (). There is no bug in that area (that microsoft no of, that it).
OpenGL > DirectX
I am not slagging it off though, I use it myself. I think most of the newer compiler have loads of bugs.
Leave of those (). There is no bug in that area (that microsoft no of, that it).
OpenGL > DirectX
Greetings,
Mossmoss, says there is no difference between
I have not run the test yet and since I am a lazy guy I will let one of you do it.
LEt me know how it turns out.
Later,
Eck
Edited by - Eck on July 21, 2000 10:02:30 AM
Mossmoss, says there is no difference between
return exp;//andreturn (exp);//What if the exp was count++? Isreturn count++;//the same asreturn (count++); I have not run the test yet and since I am a lazy guy I will let one of you do it.
LEt me know how it turns out. Later,
Eck
Edited by - Eck on July 21, 2000 10:02:30 AM
Yeah, I use MSVC regularly and know it has plenty of bugs, including standard C/C++ messups. I don''t know, in particular, if parens missing from the return statement is one of them.
Now, as to the example provided, similar to this:
The return value is exactly the same in both cases -- 3. The value of the expression count++ is 3. The value of (expr) -- whatever expr might be -- is expr.
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Blue programmer needs food badly. Blue programmer is about to die!
Now, as to the example provided, similar to this:
//example 1int foo(){ int count = 3; return count++;} //example 2int foo(){ int count = 3; return (count++);} The return value is exactly the same in both cases -- 3. The value of the expression count++ is 3. The value of (expr) -- whatever expr might be -- is expr.
---- --- -- -
Blue programmer needs food badly. Blue programmer is about to die!
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