Splitting strings with std::getline

Question

I copy the code from this answer Split a string in C++?

#include <string>
#include <sstream>
#include <vector>

void split(const std::string &s, char delim, std::vector<std::string> &elems) {
    std::stringstream ss;
    ss.str(s);
    std::string item;
    while (std::getline(ss, item, delim)) {
        elems.push_back(item);
    }
}


std::vector<std::string> split(const std::string &s, char delim) {
    std::vector<std::string> elems;
    split(s, delim, elems);
    return elems;
}

I also add the code to check if `item.empty()`

Test code --

#include <xxx>

using namespace std;
string str = "0x0   0";
vector<string> result = split (str, ' ');

The result should be --

["0x0",   "0"]

But It doesn't split the string, and the result is --

["0x0   0"]

However, It works fine when --

str = "a    b  c d   ";

Is there something that I miss when using std::getline() ?

[Cannot reproduce](http://coliru.stacked-crooked.com/a/2acde687043340b1). Do note that every space gets treated as a empty string when you have multiple empty spaces in a row. — NathanOliver, Nov 16 '16 at 18:23
@NathanOliver It's weird that if I run your code, everything works fine. But once I put those two functions into a header called `helper.h` and `helper.cpp`, it will have the same issue. — Kevin217, Nov 16 '16 at 18:57

Splitting strings with std::getline

I also add the code to check if item.empty()

0 Answers0

I also add the code to check if `item.empty()`