splitwin.cxx:2045]:(style) Found duplicate branches for if and else.

Stephan Bergmann <sbergman -AT- redhat.com>
Mon, 20 Feb 2012 10:25:50 +0100

On 02/18/2012 03:21 PM, julien2412 wrote:

This subject, switch/if else, reminded me what I read recently on the
Stroustrup book.
1) The fact that "switch allows a better quality machine code".

I wouldn't bet anything on that one. Compilers should be able toautomatically identify if-else-chains that can be turned intoswitch-like code.

2) an enumeration used with a switch allows a compiler to detect a case
which has be forgotten.

That's indeed a reason it might be appropriate to go with a switchstatement in certain cases.


Stephan

Context

Re: [PATCH] [core/vcl/source/window/splitwin.cxx:2047] -> [core/vcl/source/window/splitwin.cxx:2045]: (style) Found duplicate branches for if and else. (continued)
- Re: [PATCH] [core/vcl/source/window/splitwin.cxx:2047] -> [core/vcl/source/window/splitwin.cxx:2045]: (style) Found duplicate branches for if and else. · Riccardo Magliocchetti
  - Re: [PATCH] [core/vcl/source/window/splitwin.cxx:2047] -> [core/vcl/source/window/splitwin.cxx:2045]: (style) Found duplicate branches for if and else. · Stephan Bergmann
    - Re: [PATCH] [core/vcl/source/window/splitwin.cxx:2047] -> [core/vcl/source/window/splitwin.cxx:2045]: (style) Found duplicate branches for if and else. · Mariusz Dykierek
      - Re: [PATCH] [core/vcl/source/window/splitwin.cxx:2047] ->[core/vcl/source/window/splitwin.cxx:2045]:(style) Found duplicate branches for if and else. · Matteo Casalin
        
        Re: [PATCH] [core/vcl/source/window/splitwin.cxx:2047] ->[core/vcl/source/window/splitwin.cxx:2045]:(style) Found duplicate branches for if and else. · Stephan Bergmann
        
        Re: [PATCH] [core/vcl/source/window/splitwin.cxx:2047] ->[core/vcl/source/window/splitwin.cxx:2045]:(style) Found duplicate branches for if and else. · Mariusz Dykierek
        
        Re: [PATCH] [core/vcl/source/window/splitwin.cxx:2047] ->[core/vcl/source/window/splitwin.cxx:2045]:(style) Found duplicate branches for if and else. · Ivan Timofeev
        Re: [PATCH] [core/vcl/source/window/splitwin.cxx:2047] ->[core/vcl/source/window/splitwin.cxx:2045]:(style) Found duplicate branches for if and else. · Mariusz Dykierek
        [PUSHED] [core/vcl/source/window/splitwin.cxx:2047] ->[core/vcl/source/window/splitwin.cxx:2045]:(style) Found duplicate branches for if and else. · Michael Meeks
        
        Re: [PATCH] [core/vcl/source/window/splitwin.cxx:2047] ->[core/vcl/source/window/splitwin.cxx:2045]:(style) Found duplicate branches for if and else. · julien2412
        Re: [PATCH] [core/vcl/source/window/splitwin.cxx:2047] ->[core/vcl/source/window/splitwin.cxx:2045]:(style) Found duplicate branches for if and else. · Stephan Bergmann

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