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:

1 voidTrimstring&s)2 {3 4     if( !s.empty ())5     {6S.erase (0, S.find_first_not_of (" "));7S.erase (S.find_last_not_of (" ") +1);8     }9 Ten}

Remove the leading and trailing spaces

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

1 voidTrimstring&s)2 {3     /*4 if (!s.empty ())5     {6 s.erase (0,s.find_first_not_of (""));7 s.erase (S.find_last_not_of ("") + 1);8     }9     */Ten     intindex =0; One     if( !s.empty ()) A     { -          while(Index = S.find (' ', index))! =string:: NPOs) -         { theS.erase (Index,1); -         } -     } -  +}

Remove all spaces

The test code is as follows:

1 intMain ()2 {3    4cout <<"-------------------------------------"<<Endl;5 6     stringPRI ="7ter, jdhfd iere*-ddw jjdjjdj";7cout <<"private string is: \ ""<< pri <<"\""<<Endl;8 Trim (PRI);9cout <<"After string is: \ ""<< pri <<"\""<<Endl;Ten  Onecout <<"-------------------------------------"<<Endl; A  -     return 0; -}

Test Code

Results such as:

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