casbin/ip_parser/parser/dtoi.cpp

#include "casbin/pch.h"

#ifndef DTOI_CPP
#define DTOI_CPP

#include "casbin/ip_parser/parser/dtoi.h"

namespace casbin {

// Decimal to integer.
// Returns number, characters consumed, success.
std::pair<int, int> dtoi(std::string_view s) {
    int n = 0;
    int i = 0;
    std::pair<int, int> p;
    for (; i < s.length() && s[i] >= '0' && s[i] <= '9'; i++) {
        n = n * 10 + int(s[i] - '0');
        if (n >= big) {
            p.first = big;
            p.second = i;
            return p;
        }
    }
    if (i == 0) {
        p.first = 0;
        p.second = 0;
        return p;
    }
    p.first = n;
    p.second = i;
    return p;
}

} // namespace casbin

#endif // DTOI_CPP