A function that splits a string into substrings in C++.

splitstring.cpp

#include <deque>
#include <string>
using namespace std;

/**
 *      Split a string into a sequence of substrings according to
 * a deliminator.
 * @param[in] str The string to split.
 * @param[in] delim The deliminator of substrings.
 * @param[out] The sequence of split strings.
 */
deque<string> splitstring(string str, char delim) {
    deque<string> splitstrings;
    string charbuffer;
    
    /**
     *      Iterate each character in the string and push it to a character buffer.
     * When the deliminating character is read, copy the contents of the
     * character buffer into the split strings sequence while clearing the
     * buffer's contents.
     */
    for (uint32_t charindex = 0u; charindex < str.length(); charindex++) {
        char readchar;
        
        readchar = str.at(charindex);
        if (readchar != delim) {
            charbuffer.push_back(readchar);
        } else {
            splitstrings.push_back(charbuffer);
            charbuffer.clear();
        }
    }
    /**
     *      If there are trialing characters in the input string
     *  there will be some characters left in the buffer, so
     *  copy the leftover characters into the split strings sequence
     *  too.
     */
    if (!charbuffer.empty()) {
        splitstrings.push_back(charbuffer);
        charbuffer.clear();
    } else {
    }
    
    return splitstrings;
}