What does ; random string ; represent in C -

-

this question has answer here:

semicolon stands termination of statement in c, allows code

; " int random string " ;

to compile without warnings , causes trouble in 

; int random string ;

which rules involved here ?

the 2 semicolons ;; represent empty statement.

this construction

; " int random string " ;

represents expression statement has no effect.

this construction is

; int random string ;

is invalid.

as for-statement construction this

for( ;; ) { /*...*/ }

means 3 expressions omitted , condition implied equal true. infinite loop can interrupted using jump statement in body (statement).


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