From: francis.glassborow@btinternet.com   
      
   On 30/04/2012 21:11, Peter Liedermann wrote:   
   > On Mon, 30 Apr 2012 14:24:29 +0200, Edward Rosten   
   >  wrote:   
   >   
   >> On Apr 29, 10:09 pm, "Peter Liedermann"  wrote:   
   >   
   > First of all, thank you for taking the time to answer, I still have to   
   > analyze this.   
   >   
   > One very short question concerning your example:   
   >>   
   >> void test(std::vector& i)   
   >> {   
   >> i.erase(i.begin(), i.end());   
   >> }   
   >>   
   >   
   > Does the "&" make any difference here and which?   
      
   A rather large difference, the difference between operating on the   
   original and operating on a copy. Without the & the function has no   
   effects on the code calling test.   
      
      
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