what is the difference between definition and declaration?
give me some examples.
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Answer Posted / code00002
A declaration introduces an identifier and describes its
type, be it a type, object, or function. A declaration is
what the compiler needs to accept references to that
identifier. These are declarations:
extern int bar;
extern int g(int, int);
double f(int, double); // extern can be omitted for function
declarations
class foo; // no extern allowed for class declarations
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