mycstring

#include "mycstring.h"

using namespace std;

char* mycstring::mystrcopy(char *dest, const char *src){
    if(*src == 0){
        *dest = 0;
        return dest;
    }

    *dest = *src;
    return mystrcopy(dest+1, src+1)-1;
}

char* mycstring::mystrcat(char *dest, const char *src){
    *dest+=*src;
    return dest;
}

int mycstring::mystrcmp (const char *str1, const char *str2){
    if(*str1 - *str2 != 0 || *str1 == 0) return *str1 - *str2;
    return mystrcmp(str1+1,str2+1);
}

//Works
const char* mycstring::mystrchr(const char *str, int c){
    while ((*str++!=c)&&*str);
    str--;
    if(*str==0) return *str ==0?0:str;
    return str;
}

char* mycstring::mystrchr (char *str, int c){
    while ((*str++!=c)&&*str);
    str--;
    if(*str==0) return *str == 0 ? 0 : str;
    return str;
}

/*

ALTERNATE for mystrchr

while(*src != ch && *src) {
    src++;
}
return *src==0?0:src;

*/

//works
int mycstring::mystrlen (const char *str){
    if(*str ==0) return 0;
    return mystrlen(str+1)+1;
}