#include <iostream>
#include <cstring>
#include <locale>
#include "nem_oo.h"

namespace sajat {

int atoi(const char *p, int base){
    int number = 0;

    for(unsigned int i = 0; i < strlen(p); i++){
        if((p[i] < '0') || (p[i] > '0' + base - 1)){
            throw "Illegal character";
        }
        number = number * base + (p[i] - '0');
    }

    return number;
}

char *strcat(const char *p1, const char *p2){
    int len = strlen(p1) + strlen(p2) + 1;
    char *egybe = new char [len];

    strcpy(egybe, p1);
    strncat(egybe, p2, strlen(p2));

    return egybe;
}

void swap(int& r1, int& r2){
    int tmp = r1;
    r1 = r2;
    r2 = tmp;
}

char *unique(char *first, char *last){
    for(int i=0; first[i]!=(*last); i++){
        if(first[i] == first[i+1]){
            for(int j=i; first[j] != *last; j++){
                first[j] = first[j+1];
            }
            i--;
        }
    }


    return last;
}

}