Update main.cpp

[PaggyCyntec]

Propose to remove "union" because it causes the auto-test program not stable. (sometimes FAIL, sometimes PASS).

[0xc0170]

Hi, please sign http://developer.mbed.org/contributor_agreement/. I can't locate your nick on mbed, please share it once done.

You can remove that code, rather than commenting it out.

[PaggyCyntec]

done, already signed the agreement, please help to review the changes, thank you.

[0xc0170]

OK thanks, can you amend the commit by removing the commented code? The result will be :

int value_int;

[0xc0170]

Closing this. For reference, look at git commit --amend or git rebase -i commands, might help you in the feature (they change the history, you should be aware of consequences :) )