C++ separating std::strings by space

Question

Closed. This question needs details or clarity. It is not currently accepting answers. question from:https://stackoverflow.com/questions/65645770/c-separating-stdstrings-by-space

Answer 1

You will need to add safety checks to make sure the string follows the pattern yourself.

#include <string>

using std::string;

void parse(string line, string & l1, string & l2, string & l3)
{
    // todo: insert your safety here; throw exceptions as necessary.

    line.erase(0, 1);

    auto space = line.find(' ');
    l1 = line.substr(0, space);
    line.erase(0, space + 1);

    space = line.find(' ');
    l2 = line.substr(0, space);
    line.erase(0, space + 1);

    l3 = std::move(line);
}

Usage:

string line;
// assign line
string l1, l2, l3;
parse(line, l1, l2, l3);