How to ignore extra space from file reading c ?-CodePudding

I'm reading from a file that contains an entire book. I'm trying to find out how many similar words there are. I have succeeded in accomplishing what I wanted. However, ass example below shows,

100  : hej
50  : the 
40   : apples 
37   : banana
30   :              <====   // This spaces I don't know where they come from?
20   : go
10   : come

I want my output to be :::

100  : hej
50  : the 
40   : apples 
37   : banana
20   : go
10   : come

I'm have been using remove_if isspace and iswspace but it does not work in my case. Anyone knows how should I think? Thank you very much!

CodePudding user response：

did you try using lambda? and tell me if the problem is solved:

words.erase(std::remove_if(words.begin(), 
                              words.end(),
                              [](unsigned char x){
                              return std::isspace(x);}),
                              words.end());

CodePudding user response：

auto noSpace = std::remove(words.begin(), words.end(), ' ');
words.erase(noSpace, words.end());