C + + Removes the leading and trailing spaces and all spaces in a string

C + + Remove the first and last space is a reference to an article, but forget the article source, just skip it.

The code to remove the trailing spaces is as follows:

1void Trim (string &s)  2 { 3  4 if (! S.empty ())  5  { 6 s.erase ( Span style= "COLOR: #800080" >0,s.find_first_not_of ( "" Span style= "color: #000000"));  7 s.erase (s.find_last_not_of ( " 1);  8 } 9 10}    

The code for removing all the spaces in the string is as follows:

1void Trim (String &S2{3/*4if (!s.empty ())5{6S.erase (0,s.find_first_not_of (""));7S.erase (S.find_last_not_of ("") + 1);8}9*/10int index =0; if (! S.empty ()) 12  {13 while ((index = s.find ( '  ", index)) ! = string::npos) 14  {15 s.erase (Index,1); 16 }17 }18 19}       

The test code is as follows:

1IntMain ()2{34 cout <<"-------------------------------------"<<Endl56String pri ="7ter, JDHFD iere*-ddw JJDJJDJ";7 cout <<"private string is: \ ""<< pri <<"\""<<Endl 8  trim (PRI);  9 cout < <  "after string is: \"  " << pri <<  "\"  Endl; 11 cout <<  "------ ------------------------------- "<< Endl;12 13 return 0;                 

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C + + Removes the leading and trailing spaces and all spaces in a string