 up vote 1 down vote The primary difference is that the worth of a static readonly field is set at operate time, so it might have a special worth for different executions of the program. Nonetheless, the value of the const industry is ready to your compile time constant. Bear in mind:
 up vote five down vote Constants cannot be changed, static variables have extra to perform with how They're allotted and exactly where They are really available.
 up vote one down vote A const subject can only be initialized with the declaration of the sector. A readonly subject could be initialized possibly within the declaration or in the constructor.
 up vote -three down vote static benefit could exists right into a functionality and can be utilized in several sorts and can have different worth in This system.
It cannot be modified outside of its declaration or made up of course's constructor (as a result of readonly).
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readonly is often declared as static, although not needed. No must initialize at the time of declaration.
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const static int x = 42; // ok // Note: Considering the fact that an inline definition is unique in the // corresponding exterior definition and from some other // corresponding inline definitions in other translation // units, all corresponding objects with static storage // length may also be distinct in Every single from the definitions static int y = -42; // mistake, inline operate definition
Its price can be assigned or altered making use of constructor. So, it presents gain when used as instance class member. Two distinct instantiation could have unique value of readonly area. For ex -
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We have to provide the value towards the const industry when it is outlined. The compiler then saves the constant’s benefit inside the assembly’s metadata.
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