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Typedef - Programming

Q1:

typedef's have the advantage that they obey scope rules, that is they can be declared local to a function or a block whereas #define's always have a global effect.

A Yes

B No

ANS:A - Yes

For eg.,

{
typedef char c;
c c1;//c is char
{
typedef int c;
c d1;//c is int
}
}

But #define always has global scope till the end of the file.