C++一行代码都不浪费的字符串分割

#include <cstdio>

#include <string>
#include <vector>

void KsaDiv(std::vector<std::string>& vstr, std::string &orgs, char divs)
{
    size_t _index = 0; vstr.clear();
    const char* _bef = orgs.data();
    while (_index < orgs.size()) {
        if (orgs[_index] == divs) {
            orgs[_index++] = 0;
            vstr.push_back(_bef);
            _bef = &orgs[_index];
            continue;
        }
        _index++;
    }
    if (_bef[0] && vstr.size()) vstr.push_back(_bef);
    orgs.resize(0);
}
void KsaDivEx(std::vector<std::string>& vstr, std::string& orgs, std::string divs)
{
    size_t _index = 0;    vstr.clear();
    const char* _bef = orgs.data();
    while ((_index = orgs.find(divs, _index)) < orgs.size()) {
        orgs[_index] = 0; _index += divs.size();
        vstr.push_back(_bef);
        _bef = &orgs[_index];
    }
    if (_bef[0] && vstr.size()) vstr.push_back(_bef);
    orgs.resize(0);
}
int main(int arg, int* argv[]) {
    std::vector<std::string> vstr;
    std::string org = "1,9,8,55,6";
    KsaDiv(vstr, org, ‘,‘);
    for (size_t i = 0; i < vstr.size(); i++)
    {
        printf("[%llu]%s\n",i, vstr[i].data());
    }
    org = "1,,9,,8,,55,,6";
    KsaDivEx(vstr, org, ",,");
    for (size_t i = 0; i < vstr.size(); i++)
    {
        printf("Ex[%llu]%s\n",i, vstr[i].data());
    }
    system("pause");
}
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