Proposal of a general do-while loop

[janderson]

Gregor Richards wrote:
> while ((pos = text.find(pattern, pos)) != string::npos) {
>     ...
> }
> 
> 
> Yeesh.
> 
>  - Gregor Richards


I agree this is the best way to solve this particular problem.  How much 
different is?

while ((pos = text.find(pattern, pos)) != string::npos) {
      ...
}

from

do {pos = text.find(pattern, pos)} while (pos != string::npos) {
      ...
}

do/while may be more neat if you have more then one pre-condition however.