Sorry to bother you all with such trivial stuff, but I just finished about 35 years of work in construction, all over the US and Europe. And when the market went south I went back to school. Calc and trig are going fine, but C++ is kicking my butt. We went from “Hello World to arrays, to structs, to classes, to vectors, to pointers, to namespaces and I/O streams, and I’m still spinning. I PROMISE to only ask for help on a topic once. And for every take, I will provide a put. I don’t have a big bag of puts yet, but every time y’all help me, I get better…it’s just a matter of time until I can be as helpful to others as you’s are to me now. Thanks in advance.

For now:

What I need is a good function for taking out the white space.
I need to edit and correct a string of class string. I commented out a lot because I am temporarily lost. My main focus is to remove whitespace. I think the “toupper” and the rest will come to me fine, but I can’t get how to find, skip, and remove, or copy the corrected version to str2.
Please help.

#include <iostream> 
	#include <string>
	#include <cctype>
	using namespace std;

	//string removeSpaces(string s1, string& s2);

//	void swap(char& v1, char& v2);
	int main()
	    string str1(" the    Answer  to life, the universe   and everything IS  42.");
		string str2;
	    //cout << "Enter a sentence to be corrected\n"
	      //   << "followed by pressing Return.\n";
	    //cin.getline(str1, 100);
		cout << endl;
		cout << " You entered: \n\n";
		cout << str1 <<endl;
		cout << endl;
		//removeSpaces(str1[100], str2[100]);
		cout << endl;
		//cout << " The corrected version is: \n";
		cout << str1 << endl;
		//cin.getline(str2, 100);
		cout << endl;
		//cout << str2 << endl;

	    return 0;

/*string removeSpaces(string s1, string& s2)  
	int j = 0;
 for(int i = 0; i < 100; i++)
     if(s1[i] == ' ') 
			if(j > 1)
				s1 = 'x';
				//s2[i] = s1[i + 1];
 return s1; 

/* void swap(char& v1, char& v2)
	    char temp = v1;
	    v1 = v2;
	    v2 = temp;
6 Years
Discussion Span
Last Post by cbsinc

I think the easiest way is, create another string and copy the original(minus the spaces) into it and then assign the temp to the original.


I'm on it. Will read this and some more links on the way. Sure to resolve today. Thanks


hey,make a temporary string and use an if condition to check for whitespace.do a character by character search on the string,for its lenth.you can get the length of the string by strlen() function.

int length= strlen(str1);

if you get a whitespace then dont copy the character to the temporary string.otherwise do!...

Happy coding.


Another helpful suggestion. I'm getting real close now. By next week, I'll try to be the king of string so that I'll be able to give something back...well at least a court jester.

Keep on keeping on!

If you have some familiarity with standard algorithms:

std::string str = " string \twith \n ws." ;
    str.erase( std::remove_copy_if( str.begin(), str.end(), str.begin(), ::isspace ),
               str.end() ) ;

Helpful tidbits. I'm implementing this and gaining more control and knowledge. Priceless. I mean to a wanna be geek.

This topic has been dead for over six months. Start a new discussion instead.
Have something to contribute to this discussion? Please be thoughtful, detailed and courteous, and be sure to adhere to our posting rules.