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09-25-2009 01:49 AM
09-25-2009 01:49 AM
[Acc flag] What is the difference?
I use aCC 6.15 to compile under Hp titanium.
There exist flag -AA and -Aa. I am not very clear about the difference.
From the man page,
-AA: Turns on newly supported ANSI C++ Standard features. <<<< This option also implies -Aa.>>
-Aa: For aC++, turns on newly supported ANSI C++ Standard features like Koenig lookup and correct scoping...
So my questions are:
1. If I use AA, there is no necessary to use -Aa?
2. When shall i use -Aa not -AA? Is there any comparability issue?
Thank you in advance.
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09-25-2009 02:33 AM - edited 08-28-2011 12:47 PM
09-25-2009 02:33 AM - edited 08-28-2011 12:47 PM
Re: [aCC flag] What is the difference?
>1. If I use -AA, there is no necessary to use -Aa?
No, -Aa was made for -AP. Or with -AC89 or -AC99.
>2. When shall I use -Aa not -AA? Is there any comparability issue?
Since the default is almost -AA, -Aa can still be used but being explicit with -AA is better. And -Aa can be used with -AP, -AC89 or -AC99.