Keil forum Hello, currently I am migrating my project from keil 4 to keil 5 and came along the error : #pragma anon_unions is a arm compiler 5 extension. I've made it as a comment now. Is commenting the right thing to do ?

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Hello, currently I am migrating my project from keil 4 to keil 5 and came along the error : #pragma anon_unions is a arm compiler 5 extension. I've made it as a comment now. Is commenting the right thing to do ?

Sai Giri over 1 year ago

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+1 Milorad Cvjetkovic over 1 year ago

Hi Sal,

Yes, if you do not get any compiler warnings then it is fine.
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0 Sai Giri over 1 year ago in reply to Milorad Cvjetkovic

Thank Milorad, It isn't showing the error or warning, but is there any alternative for this pragma for arm compiler 6 (arm clang)
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+1 Milorad Cvjetkovic over 1 year ago in reply to Sai Giri

Well Sal,

in the screenshot you attached it says "which is enabled by default in armclang" it means you do not need to do anything to enable the feature, you can, however, disable the feature meaning compiler will by default complain about it with -pedantic option.

So, by default, you are good to go.
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