C struct, typedef, enum & union - Tenouk C & C++

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STRUCT, TYPEDEF, ENUM & UNION• All references to structure fields must be fully qualified. For instance,you cannot reference the second field by fridge.• You must reference this field by onoffpower.fridge.• The following expression sets the light field to 1,onoffpower.light = 1;• When you assign to a bit field a value that is out of its range, the bitpattern is preserved and the appropriate bits are assigned.• The following expression sets the fridge field of the onoffpowerstructure to 0 because only the least significant bit is assigned to thefridge field,onoffpower.fridge = 2;• But the following expression sets the fridge field of the onoffpowerstructure to 1.onoffpower.fridge = 5;www.tenouk.com, © 20/93
STRUCT, TYPEDEF, ENUM & UNION• Bit fields structure example• Real implementation examples can be found in theLinux socket programming in fabricating the udp, tcp, ipand other protocol headers.www.tenouk.com, © 21/93
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C struct, typedef, enum & union - Tenouk C & C++

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