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Misc #13230

closed

Better Do ... while structure

Added by jzakiya (Jabari Zakiya) over 5 years ago. Updated about 5 years ago.

Status:
Rejected
Priority:
Normal
Assignee:
-
[ruby-core:79601]

Description

I just saw this, and thought I'd pass it along.

http://ncomputers.org/suggestions/do%20while.cpp

Do ... while structure improvement
Sometimes the use of jumps such as: continue, break, goto, call to a function, etc. is necessary to avoid the execution of some instructions.

This is the case of the seed, warp and swap loops of this solution for the n queens problem.

To avoid the use of jumps or tricks like for(;;) if(condition)break; on some of these cases, we are suggesting the below improvement to the do ... while loop str


/* author: ncomputers.org */
int main(){
    // Allow initializers (extra improvement)
    do(bool condition=0){
        // Block A
    }while(condition){
        // Block B
        // Variables declared inside the initializer still visible
    }
    return 0;
}
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